CN103738165B - A kind of spline sealing structure for reducing axial dimension - Google Patents
A kind of spline sealing structure for reducing axial dimension Download PDFInfo
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- CN103738165B CN103738165B CN201310690497.XA CN201310690497A CN103738165B CN 103738165 B CN103738165 B CN 103738165B CN 201310690497 A CN201310690497 A CN 201310690497A CN 103738165 B CN103738165 B CN 103738165B
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- spline
- splined shaft
- speed changer
- engine speed
- sealing structure
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Abstract
The present invention proposes a kind of spline sealing structure for reducing axial dimension, belongs to motor space placement technique field.The spline sealing structure includes the spline being located on engine speed changer connection splined shaft, and engine speed changer connection splined shaft is connection engine and the splined shaft of speed changer；Wherein, the casing of spline and gearbox is least partially overlapped in the projection that engine speed changer is connected on splined shaft.The spline sealing structure of present invention reduction axial dimension effectively reduces gearbox, clutch and the overall size of engine connection on the basis of spline bearing capacity and sealability is not changed, and then reduces package size, greatly optimizes vehicle body space.
Description
Technical field
The invention belongs to motor space arrangement field, it is related to a kind of spline sealing structure.
Background technology
The connection diagram of typical engine and transmission case is as shown in Figure 1 in the prior art.Wherein, the double clutches of wet type
Device gearbox 1 drives hydraulic oil to control the combination and disconnection of double clutch by oil pump, and clutch assembly is soaked in into hydraulic pressure
In oil, so as to reach the purpose of cooling clutch 2.Engine 3 imparts power to double clutch drive hub by spline connection,
So as to which power is inputted into gearbox 1.
In order to ensure the lubrication effect of gearbox 1, while ensureing enough power transmission, it is necessary to by keeping off oil again
The oil sealing covered is completely separated by the hydraulic oil in clutch 2 and spline, to reach the purpose of sealing and power transmission simultaneously；Mesh
Preceding vehicle arrangement tendency compact design, in order to realize the maximization in space, need to be controlled to the outer profile size of gearbox 1
System.For gearbox 1, mainly optimized at present in terms of research and development initial stage is from power train arrangement, so as to reach that reduction is whole
The purpose of individual box sizes；But it is confined to the structure arrangement of power train, it is impossible to realize the maximization of size reduction.
The content of the invention
It can optimize the spline sealing structure of vehicle space it is an object of the invention to provide a kind of.
In order to achieve the above object, solution of the invention is：
A kind of spline sealing structure for reducing axial dimension, including connect the flower on splined shaft positioned at engine speed changer
Key, the engine speed changer connection splined shaft is connection engine and the splined shaft of speed changer；Wherein, the spline with it is described
The casing of gearbox is least partially overlapped in the projection that the engine speed changer is connected on splined shaft.
The spline and the length of the casing axial overlap part of the gearbox are less than or equal on the gearbox
Oil sealing the engine speed changer connect splined shaft on axial length.
The spline sealing structure also includes the seal being located on engine speed changer connection splined shaft；It is described close
Counterbore is formed between Feng Ti, the spline and engine speed changer connection spline.
The seal is hollow cylindrical.
Due to using such scheme, the beneficial effects of the invention are as follows：The spline sealing structure of present invention reduction axial dimension
On the basis of spline bearing capacity and sealability is not changed, effectively reduce gearbox, clutch and engine and connect
Overall size, and then package size is reduced, greatly optimize vehicle body space.
Brief description of the drawings
Fig. 1 is the connection diagram of engine and gearbox in the prior art；
Fig. 2 is the structural representation that engine speed changer connection splined shaft is connected with gearbox in the prior art；
Fig. 3 is the structural representation that is connected with gearbox of spline sealing structure of reduction axial dimension in the embodiment of the present invention
Figure；
Fig. 4 is the structural representation of the spline sealing structure of reduction axial dimension in the embodiment of the present invention.
In accompanying drawing：1st, gearbox；2nd, clutch；3rd, engine；401st, the first oil sealing；402nd, the second oil sealing；501st, first
Splined shaft；502nd, the second splined shaft；601st, the first spline；602nd, the second spline；701st, the first gear box；702nd, second becomes
Fast box body；8th, sealing cylinder.
Embodiment
The present invention will be further described with reference to the accompanying drawings.
In order to optimize vehicle space, the present invention proposes a kind of spline sealing structure for reducing axial dimension.
The structural representation that engine speed changer connection splined shaft is connected with gearbox in the prior art is illustrated in figure 2,
Wherein engine speed changer connection splined shaft is connection engine and the splined shaft of speed changer.701 be the first gearbox case in Fig. 2
Body, 501 be connection gearbox and the first splined shaft of engine, and the first spline 601 is located on the side of the first splined shaft 501,
Length is X；First oil sealing 401 is symmetrically distributed in the both sides of the first splined shaft.Wherein, the first splined shaft 501 stretches out gearbox
One end（That is exposed junction）End is L to the axial distance of the first gear box 701, and the first spline 601 is in the first spline
One end of the stretching gearbox of axle 501 and the first gear box 701 are between the projection of the first splined shaft, i.e. the first splined shaft
601 are integrally located on the exposed parts of the first splined shaft 501.
The present invention consider power train arrangement scheme on the basis of, from design of part in terms of further optimize gear-box axle to
Size, body structure compact Layout is realized so as to maximize, and is illustrated in figure 3 the spline sealing knot of present invention reduction axial dimension
The structural representation that structure is connected with gearbox, Fig. 4 is then the structural representation of the spline sealing structure of the reduction axial dimension；Its
In, 702 be the second gear box, and 502 be connection gearbox and the second splined shaft of engine.
The spline sealing structure includes being located at engine and the second flower on the side of the second splined shaft of clutch connector 502
Key 602 and sealing cylinder 8.Wherein, the axial direction of the second spline 602 and the second gear box 702 on the second splined shaft 502
Projection section is overlapped, therefore in the case where the length of the second spline 602 is constant relative to the length of the first spline 601, this hair
The length that the second bright splined shaft 502 stretches exposed parts can be less than the length of the exposed parts of the first splined shaft 501, so that significantly
Save the space between gearbox to engine.
Sealing cylinder 8 is located on the second splined shaft 502, is hollow cylinder structure.Sealing cylinder 8, the second splined shaft 502 with
A counterbore is formed between second spline 602.Second spline 602 can be then placed in the inner cylinder face of sealing cylinder 8.
Spline and sealing cylinder can be covered independent by the spline sealing structure of the present invention when implementing in part manufacture
Processing, then applies encapsulant and is pressed into one；Spline can also be formed integrally with sealing cylinder face using the method for finish forge, then
Sealing cylinder face is machined.
In summary, the present invention can make the axial integral translation distance of spline exposed end portion for prior art
X, so that former exposed length L be reduced to (L-X), the size of complete machine also reduces therewith；Meanwhile, in the second splined shaft 502
Spline in unexposed portion enables to spline not changed with reference to length effectively, so that the bearing capacity of spline does not occur
Change；Further, since the presence of sealing cylinder 8 of the empty set outside spline, the sealability of splined shaft will not also change.
Therefore, the present invention on the basis of spline bearing capacity and sealability is not changed, effectively reduce gearbox, clutch with
The overall size of engine connection, and then package size is reduced, greatly optimize vehicle body space.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without passing through performing creative labour.Therefore, the invention is not restricted to implementation here
Example, those skilled in the art do not depart from improvement that scope made and change all should be according to the announcement of the present invention
Within protection scope of the present invention.
Claims (3)
1. a kind of spline sealing structure for reducing axial dimension, it is characterised in that：Including connecting spline positioned at engine speed changer
Spline on axle, the engine speed changer connection splined shaft is connection engine and the splined shaft of speed changer；Wherein, the flower
Key and the casing of the gearbox are least partially overlapped in the projection that the engine speed changer is connected on splined shaft；The spline
Being connected for engine speed changer is used for the spline for connecting engine and speed changer on splined shaft；
The spline sealing structure also includes the seal being located on engine speed changer connection splined shaft；The sealing
Counterbore is formed between body, the spline and engine speed changer connection splined shaft, the spline and the seal are constituted
The side wall of the counterbore, the engine speed changer connection splined shaft constitutes the bottom of the counterbore.
2. the spline sealing structure of reduction axial dimension according to claim 1, its structure is：The spline with it is described
The oil sealing that the length of the casing axial overlap part of gearbox is less than or equal on the gearbox is in the engine speed change
Axial length on device connection splined shaft.
3. the spline sealing structure of reduction axial dimension according to claim 1, its structure is：The seal is sky
The heart is cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690497.XA CN103738165B (en) | 2013-12-13 | 2013-12-13 | A kind of spline sealing structure for reducing axial dimension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690497.XA CN103738165B (en) | 2013-12-13 | 2013-12-13 | A kind of spline sealing structure for reducing axial dimension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103738165A CN103738165A (en) | 2014-04-23 |
| CN103738165B true CN103738165B (en) | 2017-09-26 |
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ID=50495266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310690497.XA Active CN103738165B (en) | 2013-12-13 | 2013-12-13 | A kind of spline sealing structure for reducing axial dimension |
Country Status (1)
| Country | Link |
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| CN (1) | CN103738165B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311985B1 (en) * | 1999-06-28 | 2001-11-06 | Spricer Technologies, Inc. | Integral yoke and slinger |
| US6896442B1 (en) * | 2002-11-27 | 2005-05-24 | The Grigoleit Company | Knob with fingers for gripping a shaft |
| CN201377520Y (en) * | 2009-03-13 | 2010-01-06 | 重庆渝安创新科技(集团)有限公司 | Seal connecting structure of output shaft of automobile gear box and transmission shaft |
| CN201461950U (en) * | 2009-07-18 | 2010-05-12 | 东风汽车有限公司设备制造厂 | Semi-axis sealing mechanism of main speed reducer |
| CN201779235U (en) * | 2010-07-20 | 2011-03-30 | 杭州吉利机械有限公司 | Double-shaft flange mechanism with dustproof cover |
| CN201836378U (en) * | 2010-09-26 | 2011-05-18 | 南京东华传动轴有限公司 | Sealing device for automobile transmission shaft spline pair |
| CN103438194A (en) * | 2013-09-05 | 2013-12-11 | 韶关飞翔自动变速箱有限公司 | Method for applying single-intermediate-shaft speed changer structure to double-intermediate-shaft speed changer structure |
-
2013
- 2013-12-13 CN CN201310690497.XA patent/CN103738165B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103738165A (en) | 2014-04-23 |
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