CN103671586A - Automobile transmission shaft - Google Patents
Automobile transmission shaft Download PDFInfo
- Publication number
- CN103671586A CN103671586A CN201210336636.4A CN201210336636A CN103671586A CN 103671586 A CN103671586 A CN 103671586A CN 201210336636 A CN201210336636 A CN 201210336636A CN 103671586 A CN103671586 A CN 103671586A
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- China
- Prior art keywords
- transmission shaft
- bearing support
- hub bearing
- acromere
- square key
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Abstract
The invention provides a novel automobile transmission shaft. The automobile transmission shaft comprises a transmission shaft inner segment, a transmission shaft outer segment and a hub bearing support, wherein the transmission shaft inner segment is connected with a gearbox output shaft, the transmission shaft outer segment is connected with the transmission shaft inner segment, and the hub bearing support is connected with the transmission shaft outer segment. Transmission shaft outer segment rectangular spline teeth are arranged at the end, connected with the hub bearing support, of the transmission shaft outer segment. Hub bearing support rectangular spline teeth which are correspondingly matched with the transmission shaft outer segment rectangular spline teeth are correspondingly arranged at the end, connected with the transmission shaft outer segment, of the hub bearing support. The transmission shaft outer segment rectangular spline teeth and the hub bearing support rectangular spline teeth are meshed together. The end face spline tooth connecting and center bolt locking mode is adopted in the transmission shaft outer segment, the length of the transmission shaft can be effectively decreased, the weight of the mechanism is lowered, transmission connecting reliability is improved, the processing technology of the rectangular spline teeth is simple, and the working efficiency is improved.
Description
Technical field
The invention belongs to vehicle chassis technology field, relate in particular to a kind of novel truck drive shaft.
Background technique
As shown in Figure 1, transmission shaft internal segment 1 is connected with gearbox clutch end at present general vehicle transmission axle construction, and transmission shaft acromere 2 is provided with the male splined shaft 3 that has external splines, and male splined shaft 3 belongs to a part for transmission shaft acromere 2.Hub bearing support 4 is provided with the inner splined hole 5 matching with male splined shaft 3, and in automobile assembling, the male splined shaft 3 of transmission shaft acromere 2 inserts the inner splined hole 5 of hub bearing supports 4, installs the final structure with nut 6 locking constitutional diagrams 2 after wheel.
Traditional transmission shaft connection scheme need be opened very long internal spline on hub bearing support 4, establishes male splined shaft 3 on transmission shaft acromere 2, and its technique of manufacturing spline is more complicated, and male splined shaft 3 is long, weight is large, cost is higher.
Summary of the invention
The object of this invention is to provide a kind of structure weight, simple novel truck drive shaft of processing technology of reducing.
Technological scheme of the present invention provides a kind of novel truck drive shaft, comprise the transmission shaft internal segment being connected with output shaft of gear-box, the transmission shaft acromere being connected with described transmission shaft internal segment and the hub bearing support being connected with described transmission shaft acromere, the end that described transmission shaft acromere is connected with described hub bearing support is provided with transmission shaft acromere square key tooth, the end that described hub bearing support is connected with described transmission shaft acromere is correspondingly provided with the hub bearing support square key tooth that coordinate corresponding to described transmission shaft acromere square key tooth, together with described transmission shaft acromere square key tooth is meshed with described hub bearing support square key tooth.
Preferably, together with described transmission shaft acromere is bolted with described hub bearing support.
Preferably, the external diameter of described bolt is greater than 14mm, and its length that is threaded is at least 40mm.
Preferably, the axial central part of described hub bearing support is provided with the through hole that the screw rod for described bolt passes, correspondingly, the axial central part of described transmission shaft acromere is provided with the tapped hole for being connected with described bolt, and the screw rod of described bolt passes described through hole and is threaded togather mutually with described tapped hole.
Preferably, on the junction surface of described bolt, scribble locking glue.
Preferably, described hub bearing support is provided with annular groove with the end that described transmission shaft acromere is connected, and described hub bearing support square key tooth is arranged in described annular groove.
Preferably, the internal diameter of described annular groove is less than the internal diameter of described transmission shaft acromere square key tooth, its external diameter is greater than the external diameter of described transmission shaft square key tooth, and the contact points of described transmission shaft acromere square key tooth and described hub bearing support square key tooth is positioned at described annular groove.
Preferably, the center portion of described hub bearing support is provided with heavy hole.
Adopt after technique scheme, there is following beneficial effect: the truck drive shaft that this is novel, its transmission shaft acromere has been cancelled external splines shaft part, can effectively reduce the weight of system.Be specially, as previously mentioned because cancelled longer external splines shaft part, and new structure passes through to optimize hub bearing support and transmission shaft end surface, and its comparable common transmission shaft structure reduces approximately 150 grams of weight.It has cancelled the processing technology of external splines and the hub bearing internal spline of transmission shaft acromere, change the simple transmission shaft acromere of technique square key tooth and hub bearing support square key tooth into, the processing of square key tooth adopts Milling Process to add quenching heat treatment, the interior external splines processing technology of the relatively common transmission shaft of processing technology is simple, it effectively reduces cost, has improved work efficiency.It is high that the kind of drive of the truck drive shaft that this is novel is easy, easy for installation, it has transmission efficiency, failure risk is little etc. beneficial effect.
Accompanying drawing explanation
Fig. 1 is the structure pie graph of traditional transmission shaft structure;
Fig. 2 is the mounting unit assembly figure of traditional transmission shaft;
Fig. 3 is a kind of novel truck drive shaft one embodiment's of the present invention structure pie graph;
Fig. 4 is the structural representation of the hub bearing support square key tooth of hub bearing support in a kind of novel truck drive shaft of the present invention;
Fig. 5 is the mounting unit assembly figure of a kind of novel truck drive shaft of the present invention;
Fig. 6 is the cut-away view of a kind of novel truck drive shaft of the present invention.
The reference character table of comparisons:
1-transmission shaft internal segment, 2-transmission shaft acromere, 3-male splined shaft
4-hub bearing support, 5-inner splined hole, 6-nut
7-transmission shaft internal segment, 8-transmission shaft acromere, 9-transmission shaft acromere square key tooth
10-hub bearing support, 11-bolt, 12-hub bearing support square key tooth
13-annular groove 14-heavy hole
Embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail, it illustrates principle of the present invention as the part of this specification by embodiment, other aspects of the present invention, and feature and advantage thereof will become very clear by this detailed description.
As in Figure 3-5, a kind of novel truck drive shaft of one embodiment of the invention, comprise the transmission shaft internal segment 7 being connected with output shaft of gear-box, the transmission shaft acromere 8 being connected with transmission shaft internal segment 7 and the hub bearing support 10 being connected with transmission shaft acromere 8, the end that wherein this transmission shaft acromere 8 is connected with hub bearing support 10 is provided with transmission shaft acromere square key tooth 9, the end that hub bearing support 10 is connected with transmission shaft acromere 8 is correspondingly provided with the hub bearing support square key tooth 12 that coordinate corresponding to transmission shaft acromere square key tooth 9, together with this transmission shaft acromere square key tooth 9 is meshed when installing and using with hub bearing support square key tooth 12.
This truck drive shaft connects gear box output end by transmission shaft internal segment 7, this transmission shaft internal segment 7 is connected with transmission shaft acromere 8, transmission shaft acromere 8 is connected with hub bearing support 10, and together with it is meshed with hub bearing support square key tooth 12 by its transmission shaft acromere square key tooth 9 again, hub bearing support 10 is connected with wheel, thereby realize the moment of torsion of gearbox is passed to hub bearing support 10 successively, hub bearing support 10 transfers a torque to wheel again, thereby realizes wheel running.And this new automobile transmission shaft, by traditional, pass through after axially inside and outside spline joint Placement improvement by nut check for by square key tooth connection transmitting torque, the mode of center fixing and locking, it has cancelled the external splines shaft part of traditional transmission shaft, thereby effectively alleviated the weight of this transmission shaft, the transmission shaft with tradition with external splines shaft part is compared, and the weight of this new automobile transmission shaft can alleviate approximately 150 grams.Due to alleviating of its weight, can save material, reduce production costs, and can extend transmission shaft working life, improve transmission efficiency.Further, owing to passing through square key tooth transmitting torque between its transmission shaft acromere 8 and hub bearing support 10, it has cancelled traditional rotatingshaft by the mode of interior external splines transmitting torque, and this square key tooth, be specially transmission shaft acromere square key tooth 8 and hub bearing support square key tooth 12, it adopts Milling Process to add the mode of quenching heat treatment, and the interior external splines processing technology of the relatively common transmission shaft of its processing technology is simple, also can effectively reduce costs, improve working efficiency.
Preferably, in order to realize by square key tooth, connect transmitting torque, the mode of center fixing and locking, this transmission shaft acromere 8 links together by bolt 11 with hub bearing support 10, reaches the effect of the tight lock of centre bolt.The external diameter of this bolt 11 is greater than 14mm, and its length that is threaded is at least 40mm.On the junction surface of bolt 11, scribble locking glue.This bolt 11 at least adopts the bolt that is greater than M14, and the length that is threaded need be greater than 40mm, and its junction surface need to be coated with locking glue loosening to prevent that bolt 11 from occurring in rotation process, with the moment of torsion of gearbox output the most at last, be delivered on wheel.Other member that can realize identical function be can certainly adopt, transmission shaft acromere 8 and hub bearing support 10 center fixing and lockings realized.
In the present embodiment, the axial central part of hub bearing support 10 is provided with the through hole that the screw rod for bolt 11 passes, correspondingly, the axial central part of transmission shaft acromere 8 is provided with the tapped hole for being connected with bolt 11, and the screw rod of this bolt 11 passes through hole and is threaded togather mutually with tapped hole.By the screw rod of bolt 11 being passed to the through hole of hub bearing support 10, and rotate into the tapped hole of transmission shaft acromere 8, thereby realize, by bolt 11, transmission acromere 8 is connected and is tightly locked together with hub bearing support 10.
As shown in Figure 4, the end that hub bearing support 10 is connected with transmission shaft acromere 8 is provided with annular groove 13, and this hub bearing support square key tooth 12 is arranged on annular groove interior 13.
The internal diameter of this annular groove 13 is less than the internal diameter of transmission shaft acromere square key tooth 8, its external diameter is greater than the external diameter of transmission shaft square key tooth 8, and the groove depth of annular groove 13 meshes the length (as shown in Figure 5) of getting up corresponding to transmission shaft acromere square key tooth 8 and hub bearing support square key tooth 12.; during use, transmission shaft acromere square key tooth 8 is positioned at annular groove 13 with the contact points of hub bearing support square key tooth 12; the notch of this annular groove 13 arrives at the tooth root portion of transmission shaft acromere square key tooth 8 substantially, to cover transmission shaft acromere square key tooth 8, plays a protective role.
Preferably, as shown in Figure 6, the center portion of hub bearing support 10 is provided with heavy hole 14.The central authorities in heavy hole 14 have through hole to be used for making construction bolt to pass, and by this heavy hole 14 is set, the internal spline section of its relative conventional construction can be saved material more, reduces the weight of transmission shaft.
The truck drive shaft that this is novel, it has cancelled external splines shaft part, can effectively reduce the weight of system, has saved cost.The processing technology that it has cancelled external splines and the hub bearing internal spline of transmission shaft acromere, changes the simple transmission shaft acromere of technique square key tooth and hub bearing support square key tooth into, and its processing technology is simple, and it effectively reduces cost, has improved work efficiency.It arranges heavy hole by the center portion at hub bearing support, has further alleviated transmission shaft weight, has saved cost of production.It is high that the kind of drive of the truck drive shaft that this is novel is easy, easy for installation, it has transmission efficiency, failure risk is little etc. beneficial effect.
Disclosed above is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (8)
1. a truck drive shaft, comprise the transmission shaft internal segment being connected with output shaft of gear-box, the transmission shaft acromere being connected with described transmission shaft internal segment and the hub bearing support being connected with described transmission shaft acromere, it is characterized in that, the end that described transmission shaft acromere is connected with described hub bearing support is provided with transmission shaft acromere square key tooth, the end that described hub bearing support is connected with described transmission shaft acromere is correspondingly provided with the hub bearing support square key tooth that coordinate corresponding to described transmission shaft acromere square key tooth, together with described transmission shaft acromere square key tooth is meshed with described hub bearing support square key tooth.
2. truck drive shaft according to claim 1, is characterized in that, together with described transmission shaft acromere is bolted with described hub bearing support.
3. truck drive shaft according to claim 2, is characterized in that, the external diameter of described bolt is greater than 14mm, and its length that is threaded is at least 40mm.
4. truck drive shaft according to claim 3, it is characterized in that, the axial central part of described hub bearing support is provided with the through hole that the screw rod for described bolt passes, correspondingly, the axial central part of described transmission shaft acromere is provided with the tapped hole for being connected with described bolt, and the screw rod of described bolt passes described through hole and is threaded togather mutually with described tapped hole.
5. truck drive shaft according to claim 4, is characterized in that, scribbles locking glue on the junction surface of described bolt.
6. truck drive shaft according to claim 1, is characterized in that, described hub bearing support is provided with annular groove with the end that described transmission shaft acromere is connected, and described hub bearing support square key tooth is arranged in described annular groove.
7. truck drive shaft according to claim 6, it is characterized in that, the internal diameter of described annular groove is less than the internal diameter of described transmission shaft acromere square key tooth, its external diameter is greater than the external diameter of described transmission shaft square key tooth, and the contact points of described transmission shaft acromere square key tooth and described hub bearing support square key tooth is positioned at described annular groove.
8. according to the truck drive shaft described in arbitrary claim in claim 1-7, it is characterized in that, the center portion of described hub bearing support is provided with heavy hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336636.4A CN103671586A (en) | 2012-09-12 | 2012-09-12 | Automobile transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210336636.4A CN103671586A (en) | 2012-09-12 | 2012-09-12 | Automobile transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671586A true CN103671586A (en) | 2014-03-26 |
Family
ID=50310076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210336636.4A Pending CN103671586A (en) | 2012-09-12 | 2012-09-12 | Automobile transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671586A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122724A (en) * | 1982-05-26 | 1984-01-18 | Skf Kugellagerfabriken Gmbh | Torque transmitting coupling |
| US4460058A (en) * | 1981-04-28 | 1984-07-17 | Lohr & Bromkamp Gmbh | Bearing assembly for a wheel hub driven by a rotary constant velocity universal joint |
| US4893960A (en) * | 1986-10-24 | 1990-01-16 | Lohr & Bromkamp Gmbh | Wheel Bearing/constant velocity joint unit |
| US6146022A (en) * | 1997-12-25 | 2000-11-14 | Ntn Corporation | Hub unit bearing for wheel |
| CN1279748A (en) * | 1997-11-22 | 2001-01-10 | Gkn自动股份公司 | Assembly system on a propeller shaft |
| JP2002178705A (en) * | 2000-12-15 | 2002-06-26 | Ntn Corp | Bearing device for driving wheel |
| JP2003097588A (en) * | 2001-09-25 | 2003-04-03 | Nsk Ltd | Hub unit for automobile driving wheel |
| JP2008284920A (en) * | 2007-05-15 | 2008-11-27 | Ntn Corp | Bearing device for wheel |
| US20100038958A1 (en) * | 2006-12-28 | 2010-02-18 | Youichi Tsuzaki | Wheel supporting system |
| JP2010083432A (en) * | 2008-10-02 | 2010-04-15 | Jtekt Corp | Bearing unit for wheel |
-
2012
- 2012-09-12 CN CN201210336636.4A patent/CN103671586A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460058A (en) * | 1981-04-28 | 1984-07-17 | Lohr & Bromkamp Gmbh | Bearing assembly for a wheel hub driven by a rotary constant velocity universal joint |
| GB2122724A (en) * | 1982-05-26 | 1984-01-18 | Skf Kugellagerfabriken Gmbh | Torque transmitting coupling |
| US4893960A (en) * | 1986-10-24 | 1990-01-16 | Lohr & Bromkamp Gmbh | Wheel Bearing/constant velocity joint unit |
| CN1279748A (en) * | 1997-11-22 | 2001-01-10 | Gkn自动股份公司 | Assembly system on a propeller shaft |
| US6146022A (en) * | 1997-12-25 | 2000-11-14 | Ntn Corporation | Hub unit bearing for wheel |
| JP2002178705A (en) * | 2000-12-15 | 2002-06-26 | Ntn Corp | Bearing device for driving wheel |
| JP2003097588A (en) * | 2001-09-25 | 2003-04-03 | Nsk Ltd | Hub unit for automobile driving wheel |
| US20100038958A1 (en) * | 2006-12-28 | 2010-02-18 | Youichi Tsuzaki | Wheel supporting system |
| JP2008284920A (en) * | 2007-05-15 | 2008-11-27 | Ntn Corp | Bearing device for wheel |
| JP2010083432A (en) * | 2008-10-02 | 2010-04-15 | Jtekt Corp | Bearing unit for wheel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |
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| WD01 | Invention patent application deemed withdrawn after publication |