CN103978894B - Drive axle and car - Google Patents
Drive axle and car Download PDFInfo
- Publication number
- CN103978894B CN103978894B CN201410232701.8A CN201410232701A CN103978894B CN 103978894 B CN103978894 B CN 103978894B CN 201410232701 A CN201410232701 A CN 201410232701A CN 103978894 B CN103978894 B CN 103978894B
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- Prior art keywords
- gear
- drive axle
- axle
- clutch
- shaft
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Abstract
The invention discloses a drive axle. The drive axle comprises a differential (1), a first drive axle shaft (2) and a second drive axle shaft (3) and further comprises a gear set and a clutch (6). The differential (1) is connected with a power supply. The gear set comprises a first gear (7) and a second gear (8). The first gear (7) is meshed with a first tooth portion of a casing of the differential (1), the second gear (8) is meshed with a third gear (9), the third gear (9) is arranged on at least one of the first drive axle shaft (2) and the second drive axle shaft (3), the first gear (7) and the second gear (8) can perform power transmission by the connection with the clutch (6), and the first gear (7) and the second gear (8) can have a speed difference, and transmission connectors of the clutch (6) can slide relative to each other in the connection state. The invention further discloses a car.
Description
Technical field
The present invention relates to a kind of drive axle and vehicle.
Background technology
End of the drive axle in automotive transmission, generally by main reducing gear, differential mechanism, wheel drive and drive axle
Shell etc. is constituted.Its basic training with being that the motor torque that universal driving device is transmitted passed to driving moment, realize reducing rotating speed,
The purpose of increase torque；Torque assignment problem and the difference between driving wheels must be solved simultaneously by the differential mechanism of drive axle
Fast problem.
Fig. 1 shows a kind of structural representation of parallel-axis type drive axle of the prior art, and the drive axle passes through motor
10 drive, and the power of the output of motor 10 passes to left and right sidesing driving wheel 1 ' by differential mechanism 1, and the defect of this drive axle is to be only capable of
Common driving functions are realized enough, the moment of torsion distribution between two driving wheels 1 ' is of substantially equal, it is impossible to change to each driving
The moment of torsion distribution of wheel 1 '.
Related improvement has been made to change the moment of torsion distribution to each driving wheel, such as a kind of differential in prior art
System (Schaeffler differential speed system) employs 6 planet row structures and two motors to change to left and right sidesing driving wheel moment of torsion point
Match somebody with somebody, another kind of drive axle (the torque vector control drive axle of ZF companies) employs planetary system mechanism and multiplate clutch mechanism comes
Change the moment of torsion to left and right sidesing driving wheel to distribute.Due to all employ processing difficulties, relatively costly planet machine in both schemes
Structure, therefore increased production cost.
In consideration of it, be necessary to provide a kind of new drive axle, to overcome or alleviated by drawbacks described above.
The content of the invention
It is an object of the present invention to provide a kind of drive axle, the drive axle can change to two different in drive axle
The moment of torsion distribution of jack shaft.
It is a further object to provide a kind of vehicle, the drive axle that the vehicle is provided using the present invention.
To achieve these goals, the present invention provides a kind of drive axle, including differential mechanism, is connected to the differential mechanism
First jack shaft and the second jack shaft of two interior axle shaft gears, the housing of the differential mechanism are connected to power
Source, it is the power that the power source is exported can be transferred to first jack shaft and the second jack shaft, wherein, described
Drive axle also includes at least one gear train and clutch, and the gear train includes first gear and second gear, described first
The position of the rotation axiss of gear and second gear is relative to first jack shaft and the position of the axis of the second jack shaft
Put that holding is constant, the first gear engage with the first teeth portion of the housing of the differential mechanism, the second gear and the 3rd tooth
Wheel engagement, the 3rd gear be arranged on first jack shaft and the second jack shaft at least one on, described first
Gear and second gear can be engaged into action edge transmission, and the first gear and second gear energy by the clutch
Transmission fastener enough with speed discrepancy and the clutch in the engaged condition being capable of relative to each other sliding.
Preferably, the output shaft of the power source is be arranged in parallel with first jack shaft and the second jack shaft.
Preferably, the first gear, second gear and the 3rd gear have respectively and cause when the gear train runs
The number of teeth of the rotating speed of the first gear more than the rotating speed of the second gear.
Preferably, the power source is motor.
Preferably, the drive axle includes multi-stage speed-reducing gear train, the chopped-off head reduction gearing in the multi-stage speed-reducing gear train
Group is connected with the output shaft of the motor, and final reduction gear group is connected with the second teeth portion transmission of the housing of the differential mechanism
Connect.
Preferably, include can be separated from one another with the first clutch piece for contacting and for the transmission fastener of the clutch
Two clutch disc, the first clutch piece and second clutch piece it is respectively multiple, and the first clutch piece is connected to
The first gear, the second clutch piece are connected to the second gear.
Preferably, first planet bevel gear that is parallel and being oppositely arranged and the second planet cone tooth are also included in the differential mechanism
Wheel, the first planet bevel gear engaged with described two axle shaft gears, and perpendicular to described two axle shaft gears, described second
Bevel planet gear is engaged with described two axle shaft gears, and perpendicular to described two axle shaft gears.
Preferably, the differential mechanism is located in the housing of the drive axle, and the first gear and second gear difference
Can rotate in the installation axle of housing for being fixed on the drive axle and around the installation axle.
Additionally, the present invention also provides a kind of vehicle, wherein, the vehicle is included according to the driving described in above-mentioned technical proposal
Bridge, wherein, first jack shaft and the second jack shaft are connected to the first driving wheel and the second driving wheel.
By above-mentioned technical proposal, as first gear and second gear can have the biography of speed discrepancy and the clutch
Dynamic fastener in the engaged condition can relative to each other sliding, therefore, it is possible to be turned round between first gear and second gear
Square distributes, and as second gear is connected with the 3rd gear of the jack shaft for being connected to drive axle, it is possible to change driving
The moment of torsion distribution of two different jack shafts in bridge, further, since the position of the rotation axiss of first gear and second gear
Keep constant relative to the position of first jack shaft and the axis of the second jack shaft, i.e. first gear and second gear
It is not planetary gear, so having saved production cost.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of structural representation of parallel-axis type drive axle of the prior art.
Fig. 2 is the structural representation of drive axle according to the embodiment of the present invention.
Fig. 3 is the structural representation of clutch according to the embodiment of the present invention.
Description of reference numerals
1 ' driving wheel, 1 differential mechanism
2 first jack shaft, 3 second jack shaft
4 first driving wheel, 5 second driving wheel
6 clutch, 7 first gear
The 3rd gear of 8 second gear 9
10 motor, 11 first axle shaft gear
12 second axle shaft gear, 13 first planet bevel gear
14 second bevel planet gear, 61 first clutch piece
62 second clutch pieces
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Referring to Fig. 2, according to an aspect of the present invention, there is provided a kind of drive axle, including differential mechanism 1, difference is connected to
First jack shaft 2 and second of two axle shaft gears (the first axle shaft gear 11 and the second axle shaft gear 12) in fast device 1 drives
Dynamic semiaxis 3, the housing of differential mechanism 1 are connected to power source, the power that power source is exported can be transferred to the first driving
Semiaxis 2 and the second jack shaft 3, it is characterised in that drive axle also includes at least one gear train and clutch 6, gear train bag
The position of rotation axiss of first gear 7 and second gear 8, first gear 7 and second gear 8 is included relative to the first jack shaft
2 and second jack shaft 3 axis position keep it is constant, first gear 7 is engaged with the first teeth portion of the housing of differential mechanism 1,
Second gear 8 is engaged with the 3rd gear 9, and the 3rd gear 9 is arranged at least the one of the first jack shaft 2 and the second jack shaft 3
On person, first gear 7 and second gear 8 can be engaged into action edge transmission, and first gear 7 and second by clutch 6
Gear 8 can have the transmission fastener of speed discrepancy and clutch 6 in the engaged condition being capable of relative to each other sliding.
As noted previously, as first gear 7 and second gear 8 can have the transmission fastener of speed discrepancy and clutch 6
In the engaged condition can relative to each other sliding, therefore, it is possible to carry out moment of torsion point between first gear 7 and second gear 8
Match somebody with somebody, and as second gear 8 is connected with the 3rd gear 9 of the jack shaft for being connected to drive axle, it is possible to changing drive axle
The moment of torsion distribution of middle two different jack shafts, further, since the position of the rotation axiss of first gear 7 and second gear 8
Keep constant relative to the position of the first jack shaft 2 and the axis of the second jack shaft 3, i.e. first gear 7 and second gear 8
It is not planetary gear, so having saved production cost.It is understood that due in actual applications, it is different in drive axle
Two jack shafts be attached on the driving wheel of left and right two of vehicle, so different two drivings in changing drive axle
The moment of torsion distribution of semiaxis is effectively equivalent to the moment of torsion distribution of two driving wheels in left and right for changing vehicle, and this causes to travel in vehicle
During turn left or turn right when, increase to the property of can adapt to the moment of torsion of the left side wheel of vehicle or the torsion of right side wheels
Square, so that improve the maneuvering performance of vehicle.
Referring also to Fig. 2, the output shaft of power source can be arranged in parallel with the first jack shaft 2 and the second jack shaft 3.This
Plant the form be arrangeding in parallel the drive axle of coaxial-type is compared with arrangement more easily advantage.But the present invention is not limited to this
Form.Other various rational arrangement forms all should be protected by the present invention.
It should be noted that generally need first gear 7, second gear 8 and the 3rd gear 9 to have respectively to cause to work as gear
The number of teeth of the rotating speed of first gear 7 more than the rotating speed of second gear 8 during group operation.For example, the number of teeth of first gear 7 is more than second
Number of teeth of gear 8 etc., such purpose are in order that the moment of torsion of first gear 7 is transferred to second gear 8, finally to realize to connection
Distribute bigger moment of torsion in the driving wheel of the jack shaft for being provided with the 3rd gear 9.
Additionally, above-mentioned power source is not particularly limited, for example, can be motor 10, electromotor etc..For electricity
The situation of machine 10 causes the drive axle of present invention offer to be particularly suited for pure electric vehicle type or hybrid electric vehicle.
Additionally, in order to realize reducing the purpose of rotating speed, increase torque, drive axle can include multi-stage speed-reducing gear train, should
Chopped-off head train of reduction gears in multi-stage speed-reducing gear train is connected with the output shaft of motor 10, final reduction gear group and differential
Second teeth portion of the housing of device 1 is connected.And the invention is not restricted to this.
From figure 3, it can be seen that the transmission fastener of clutch 6 can include can be separated from one another with the first clutch for contacting
Device piece 61 and second clutch piece 62, first clutch piece 61 and second clutch piece 62 it is respectively multiple, and first clutch
Piece 61 is connected to first gear 7, and second clutch piece 62 is connected to second gear 8.It is understood that this clutch 6
Concrete form is a kind of preferred implementation of the present invention, and the protection domain being not intended to limit the present invention, to this clutch
Device 6 carries out simple modification in the quantity etc. of structure and clutch disc to be all possible, other can be applied to the present invention from
Clutch form is also possible, as long as which can realize that the moment of torsion for changing different two jack shafts in drive axle distributes i.e.
Can.
It is as differential mechanism 1 is relatively more known structure, herein for the clearer architectural feature for understanding the present invention, only right
Differential mechanism 1 has done relatively succinct description:Also include first planet bevel gear 13 that is parallel and being oppositely arranged and the in differential mechanism 1
Two bevel planet gears 14, first planet bevel gear 13 are engaged with two axle shaft gears, and perpendicular to two axle shaft gears, the second row
Star bevel gear 14 is engaged with two axle shaft gears, and perpendicular to two axle shaft gears.Certainly, the differential mechanism 1 that the present invention is used
It is not limited to this form, that is to say, that if presently, there are but non-known using the function that can realize differential mechanism 1
Various differential gears or the various differential gears with Unpredictability that there will be of future fall within the guarantor of the present invention
Shield scope.
Additionally, differential mechanism 1 is may be located in the housing of drive axle, and first gear 7 and second gear 8 can be respectively mounted
Can rotate in the installation axle of housing for being fixed on drive axle and around the installation axle.So come to cause first gear 7 and second
The position of the rotation axiss of gear 8 keeps constant relative to the position of the first jack shaft 2 and the axis of the second jack shaft 3.
According to another aspect of the present invention, there is provided a kind of vehicle, wherein, the vehicle is included according to above-mentioned technical proposal
Described in drive axle, wherein, the first jack shaft 2 and the second jack shaft 3 are connected to the first driving wheel 4 and second and drive
Driving wheel 5.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The compound mode of energy is no longer separately illustrated.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as which is without prejudice to this
The thought of invention, which should equally be considered as content disclosed in this invention.
Claims (8)
1. a kind of drive axle, including differential mechanism (1), two axle shaft gears being connected in the differential mechanism (1) first
Jack shaft (2) and the second jack shaft (3), the housing of differential mechanism (1) are connected to power source, with can will be described
The power of power source output is transferred to the first jack shaft (2) and the second jack shaft (3), it is characterised in that the drive
Dynamic bridge also includes at least one gear train and clutch (6), and the gear train includes first gear (7) and second gear (8), institute
The position for stating the rotation axiss of first gear (7) and second gear (8) is driven relative to the first jack shaft (2) and second
The position of the axis of semiaxis (3) keeps constant, and the first teeth portion of first gear (7) and the housing of the differential mechanism (1) is nibbled
Close, second gear (8) are engaged with the 3rd gear (9), and the 3rd gear (9) is arranged on the first jack shaft (2)
With the second jack shaft (3) at least one on, first gear (7) and second gear (8) can pass through the clutch
(6) the action edge that is engaged into is transmitted, and the first gear (7) and second gear (8) can have speed discrepancy and the clutch
The relative to each other sliding in the engaged condition of the transmission fastener of device (6), the power source are motor (10).
2. drive axle according to claim 1, it is characterised in that the output shaft of the power source and described first drives half
Axle (2) and the second jack shaft (3) be arranged in parallel.
3. drive axle according to claim 1, it is characterised in that first gear (7), second gear (8) and the 3rd
There is gear (9) rotating speed for causing when the gear train runs first gear (7) to be more than the second gear (8) respectively
Rotating speed the number of teeth.
4. drive axle according to claim 1, it is characterised in that the drive axle includes multi-stage speed-reducing gear train, and this is more
Level train of reduction gears in chopped-off head train of reduction gears be connected with the output shaft of the motor (10), final reduction gear group with
Second teeth portion of the housing of differential mechanism (1) is connected.
5. drive axle as claimed in any of claims 1 to 4, it is characterised in that the transmission of clutch (6) connects
Component includes can be separated from one another with the first clutch piece (61) for contacting and second clutch piece (62), the first clutch
Piece (61) and second clutch piece (62) are respectively multiple, and the first clutch piece (61) is connected to the first gear
(7), second clutch piece (62) are connected to the second gear (8).
6. drive axle as claimed in any of claims 1 to 4, it is characterised in that also include in differential mechanism (1)
The parallel and first planet bevel gear (13) that is oppositely arranged and the second bevel planet gear (14), first planet bevel gear (13)
Engage with described two axle shaft gears, and perpendicular to described two axle shaft gears, the second bevel planet gear (14) with it is described
Two axle shaft gear engagements, and perpendicular to described two axle shaft gears.
7. drive axle as claimed in any of claims 1 to 4, it is characterised in that described differential mechanism (1) is located at described
In the housing of drive axle, and the first gear (7) and second gear (8) are separately mounted to be fixed on the housing of the drive axle
Installation axle on and can rotate around the installation axle.
8. a kind of vehicle, it is characterised in that the vehicle includes drive axle as claimed in any of claims 1 to 7, its
In, the first jack shaft (2) and the second jack shaft (3) are connected to the first driving wheel (4) and the second driving wheel
(5)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410232701.8A CN103978894B (en) | 2014-05-29 | 2014-05-29 | Drive axle and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410232701.8A CN103978894B (en) | 2014-05-29 | 2014-05-29 | Drive axle and car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103978894A CN103978894A (en) | 2014-08-13 |
| CN103978894B true CN103978894B (en) | 2017-03-22 |
Family
ID=51271162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410232701.8A Expired - Fee Related CN103978894B (en) | 2014-05-29 | 2014-05-29 | Drive axle and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103978894B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6757802B2 (en) * | 2016-12-13 | 2020-09-23 | 本田技研工業株式会社 | Torque control device for four-wheel drive vehicles |
| CN109435684A (en) * | 2018-12-03 | 2019-03-08 | 北方民族大学 | A kind of four-wheel drive device |
| CN110182225B (en) * | 2019-06-25 | 2024-03-15 | 北京城景空间智能交通科技中心(有限合伙) | Bogie structure |
| CN116357714B (en) * | 2023-05-30 | 2023-09-15 | 深圳市先发智能有限公司 | Novel differential and control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680520A (en) * | 2007-05-10 | 2010-03-24 | 丰田自动车株式会社 | Driving force control device for vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2641724B2 (en) * | 1988-01-11 | 1997-08-20 | 本田技研工業株式会社 | Left and right wheel drive system for vehicles |
| CN2168752Y (en) * | 1993-05-20 | 1994-06-15 | 李文华 | Differential transmission with overrunning clutch |
| JP4142768B2 (en) * | 1998-06-02 | 2008-09-03 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Differential device |
| US7016776B2 (en) * | 2004-03-19 | 2006-03-21 | Ford Global Technologies, Llc | Magnetic powder torque transfer clutch for controlling slip across a differential mechanism |
| CN203600984U (en) * | 2013-11-12 | 2014-05-21 | 吉林大学 | Liquid drive hybrid power system with traditional differential mechanism as coupling device |
-
2014
- 2014-05-29 CN CN201410232701.8A patent/CN103978894B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680520A (en) * | 2007-05-10 | 2010-03-24 | 丰田自动车株式会社 | Driving force control device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103978894A (en) | 2014-08-13 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20170322 |