CN103978894A - Drive axle and car - Google Patents
Drive axle and car Download PDFInfo
- Publication number
- CN103978894A CN103978894A CN201410232701.8A CN201410232701A CN103978894A CN 103978894 A CN103978894 A CN 103978894A CN 201410232701 A CN201410232701 A CN 201410232701A CN 103978894 A CN103978894 A CN 103978894A
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- China
- Prior art keywords
- gear
- drive axle
- jack shaft
- diff
- axle
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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
The end of drive axle in automotive transmission, is comprised of main reduction gear, diff, wheel drive and driving axle housing etc. conventionally.Its basic training, with being that the motor torque that universal driving device is transmitted passes to driving wheel, realizes the object that reduces rotating speed, increases torque; Must be solved by the diff of drive axle torque distribution problem and the differential problem between driving wheels simultaneously.
Fig. 1 has shown the structural representation of a kind of parallel-axis type drive axle of the prior art, this drive axle drives by motor 10, the power of motor 10 outputs passes to left and right sidesing driving wheel 1 ' by diff 1, the defect of this drive axle is only can realize common driving functions, torque distribution between two drive wheels 1 ' is substantially equal, can not change the torque distribution to each drive wheel 1 '.
In prior art, make relevant improvement and changed the torque distribution to each drive wheel, for example differential system (Schaeffler differential speed system) has adopted 6 planet row structures and two motors to change a left and right sidesing driving wheel torque distribution, and another kind of drive axle (the moment of torsion vector controlled drive axle of ZF company) has adopted planetary system mechanism and multiple disk clutch mechanism to change the torque distribution to left and right sidesing driving wheel.Owing to all having used processing difficulties, planetary mechanism that cost is higher in this two schemes, therefore increased productive costs.
Given this, be necessary to provide a kind of novel drive axle, to overcome or to alleviate above-mentioned defect.
Summary of the invention
An object of the present invention is to provide a kind of drive axle, this drive axle can change the torque distribution to two jack shafts different in drive axle.
Another object of the present invention is to provide a kind of vehicle, and this vehicle uses drive axle provided by the invention.
To achieve these goals, the invention provides a kind of drive axle, comprise diff, be connected to the first jack shaft and second jack shaft of two axle side gears in described diff, the housing of described diff is in transmission connection to propulsion source, with can be by the transmission of power of described propulsion source output to described the first jack shaft and the second jack shaft, wherein, described drive axle also comprises at least one gear cluster and power-transfer clutch, described gear cluster comprises the first gear and the second gear, the position of the rotation axis of described the first gear and the second gear remains unchanged with respect to the position of the axis of described the first jack shaft and the second jack shaft, the first tooth portion engagement of the housing of described the first gear and described diff, described the second gear and the engagement of the 3rd gear, described the 3rd gear is arranged at least one of described the first jack shaft and the second jack shaft, described the first gear and the second gear can be by described power-transfer clutch be engaged into action edge transmission, and described the first gear and the second gear can have transmission fastener relative to each other slippage under engagement state of speed discrepancy and described power-transfer clutch.
Preferably, the output shaft of described propulsion source and described the first jack shaft and the second jack shaft be arranged in parallel.
Preferably, described the first gear, the second gear and the 3rd gear have respectively make when the operation of described gear cluster described in the rotating speed of the first gear be greater than the number of teeth of the rotating speed of described the second gear.
Preferably, described propulsion source is motor.
Preferably, described drive axle comprises multi-stage speed-reducing gear cluster, and the chopped-off head train of reduction gears in this multi-stage speed-reducing gear cluster and the output shaft of described motor are in transmission connection, and the second tooth portion of the housing of final reduction gear group and described diff is in transmission connection.
Preferably, the transmission fastener of described power-transfer clutch comprises can first clutch sheet and the second clutch sheet with contacting separated from one another, described first clutch sheet and second clutch sheet are respectively a plurality of, and described first clutch sheet is connected in described the first gear, described second clutch sheet is connected in described the second gear.
Preferably, in described diff, also comprise the first bevel planet gear parallel and that be oppositely arranged and the second bevel planet gear, described the first bevel planet gear and described two axle side gears engagement, and perpendicular to described two axle side gears, described the second bevel planet gear and described two axle side gears engagement, and perpendicular to described two axle side gears.
Preferably, described diff is positioned at the housing of described drive axle, and described the first gear and the second gear are arranged on respectively in the installation shaft of the housing that is fixed on described drive axle and can be around this installation shaft rotation.
In addition, the present invention also provides a kind of vehicle, and wherein, this vehicle comprises according to the drive axle described in technique scheme, and wherein, described the first jack shaft and the second jack shaft are connected to the first drive wheel and the second drive wheel.
Pass through technique scheme, because the first gear and the second gear can have transmission fastener relative to each other slippage under engagement state of speed discrepancy and described power-transfer clutch, therefore can between the first gear and the second gear, carry out torque distribution, and because the second gear is connected with the 3rd gear that is connected in the jack shaft of drive axle, so can change the torque distribution of two jack shafts different in drive axle, in addition, because the position with respect to the axis of described the first jack shaft and the second jack shaft, the position of the rotation axis of the first gear and the second gear remains unchanged, the first gear and the second gear are not all planetary wheels, so saved productive costs.
Other features and advantages of the present invention partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of a kind 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 power-transfer clutch according to the embodiment of the present invention.
Description of reference numerals
1 ' drive wheel 1 diff
2 first jack shaft 3 second jack shafts
4 first drive wheel 5 second drive wheels
6 power-transfer clutch 7 first gears
8 second gear 9 the 3rd gears
10 motor 11 first axle side gears
12 second axle side gear 13 first bevel planet gears
14 second bevel planet gear 61 first clutch sheets
62 second clutch sheets
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
Referring to Fig. 2, according to an aspect of the present invention, a kind of drive axle is provided, comprise diff 1, be connected to the first jack shaft 2 and second jack shaft 3 of two axle side gears (the first axle side gear 11 and the second axle side gear 12) in diff 1, the housing of diff 1 is in transmission connection to propulsion source, with transmission of power to the first jack shaft 2 and the second jack shaft 3 that propulsion source can be exported, it is characterized in that, drive axle also comprises at least one gear cluster and power-transfer clutch 6, gear cluster comprises the first gear 7 and the second gear 8, the position of the rotation axis of the first gear 7 and the second gear 8 remains unchanged with respect to the position of the axis of the first jack shaft 2 and the second jack shaft 3, the first gear 7 meshes with the first tooth portion of the housing of diff 1, the second gear 8 and the 3rd gear 9 engagements, the 3rd gear 9 is arranged at least one of the first jack shaft 2 and the second jack shaft 3, the first gear 7 and the second gear 8 can be by power-transfer clutch 6 be engaged into action edge transmission, and the first gear 7 and the second gear 8 can have transmission fastener relative to each other slippage under engagement state of speed discrepancy and power-transfer clutch 6.
As mentioned above, because the first gear 7 and the second gear 8 can have transmission fastener relative to each other slippage under engagement state of speed discrepancy and power-transfer clutch 6, therefore can between the first gear 7 and the second gear 8, carry out torque distribution, and because the second gear 8 is connected with the 3rd gear 9 that is connected in the jack shaft of drive axle, so can change the torque distribution of two jack shafts different in drive axle, in addition, because the position with respect to the axis of the first jack shaft 2 and the second jack shaft 3, the position of the rotation axis of the first gear 7 and the second gear 8 remains unchanged, the first gear 7 and the second gear 8 are not all planetary wheels, so saved productive costs.Be understandable that, due in actual applications, in drive axle, two different jack shafts are to be connected on two of the left and right drive wheel of vehicle, so in fact the torque distribution of two different jack shafts is equivalent to change the torque distribution of two drive wheels in left and right of vehicle in change drive axle, when this makes to turn left in Vehicle Driving Cycle process or turns right, can increase adaptively the moment of torsion of left side wheel or the moment of torsion of right side wheels of vehicle, thereby improve the maneuvering performance of vehicle.
Still, referring to Fig. 2, the output shaft of propulsion source can be arranged in parallel with the first jack shaft 2 and the second jack shaft 3.The drive axle that this form be arrangeding in parallel is compared coaxial type has arranges advantage more easily.But the present invention is not limited to this form.Other various rational arrangement forms all should be subject to protection of the present invention.
It should be noted that, conventionally need the first gear 7, the second gear 8 and the 3rd gear 9 to have respectively to make the rotating speed of the first gear 7 when gear cluster moves to be greater than the number of teeth of the rotating speed of the second gear 8.For example, the number of teeth of the first gear 7 is greater than the number of teeth of the second gear 8 etc., and such object is in order to make the moment of torsion of the first gear 7 be passed to the second gear 8, and final realization to the drive wheel that is connected in the jack shaft that is provided with the 3rd gear 9 distributed larger moment of torsion.
In addition,, above-mentioned propulsion source is not particularly limited, such as thinking motor 10, driving engine etc.For the situation of motor 10 makes drive axle provided by the invention be particularly useful for pure electric vehicle type or hybrid electric vehicle.
In addition, the object that reduce rotating speed in order to realize, increases torque, drive axle can comprise multi-stage speed-reducing gear cluster, and the chopped-off head train of reduction gears in this multi-stage speed-reducing gear cluster and the output shaft of motor 10 are in transmission connection, and the second tooth portion of the housing of final reduction gear group and diff 1 is in transmission connection.And the invention is not restricted to this.
As can be seen from Figure 3, the transmission fastener of power-transfer clutch 6 can comprise can first clutch sheet 61 and the second clutch sheet 62 with contacting separated from one another, first clutch sheet 61 and second clutch sheet 62 are respectively a plurality of, and first clutch sheet 61 is connected in the first gear 7, second clutch sheet 62 is connected in the second gear 8.Be understandable that; the concrete form of this power-transfer clutch 6 is a kind of preferred implementation of the present invention; the protection domain being not intended to limit the present invention; this power-transfer clutch 6 is carried out to simple modification in quantity of structure and clutch segment etc. to be all fine; other can be applied to power-transfer clutch form of the present invention and also be fine, as long as it can realize the torque distribution that changes two jack shafts different in drive axle.
Because diff 1 is more known structure, here architectural feature for a more clear understanding of the present invention, only diff 1 has been done to relatively succinct description: in diff 1, also comprise the first bevel planet gear 13 parallel and that be oppositely arranged and the second bevel planet gear 14, the first bevel planet gear 13 and two axle side gear engagements, and perpendicular to two axle side gears, the second bevel planet gear 14 and two axle side gear engagements, and perpendicular to two axle side gears.Certainly; the diff 1 that the present invention uses is also not limited to this form; that is to say, if used the current existence of the function that can realize diff 1 but non-known various differential gears or future the various differential gears with Unpredictability that exist all will have been fallen into protection scope of the present invention.
In addition, diff 1 can be positioned at the housing of drive axle, and the first gear 7 and the second gear 8 can be arranged on respectively in the installation shaft of the housing that is fixed on drive axle and can be around this installation shaft rotation.So make the position of the rotation axis of the first gear 7 and the second gear 8 remain unchanged with respect to the position of the axis of the first jack shaft 2 and the second jack shaft 3.
According to another aspect of the present invention, provide a kind of vehicle, wherein, this vehicle comprises according to the drive axle described in technique scheme, and wherein, the first jack shaft 2 and the second jack shaft 3 are connected to the first drive wheel 4 and the second drive wheel 5.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out combination in any, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. a drive axle, comprise diff (1), be connected to the first jack shaft (2) and second jack shaft (3) of two axle side gears in described diff (1), the housing of described diff (1) is in transmission connection to propulsion source, with can be by the transmission of power of described propulsion source output to described the first jack shaft (2) and the second jack shaft (3), it is characterized in that, described drive axle also comprises at least one gear cluster and power-transfer clutch (6), described gear cluster comprises the first gear (7) and the second gear (8), the position of the rotation axis of described the first gear (7) and the second gear (8) remains unchanged with respect to the position of the axis of described the first jack shaft (2) and the second jack shaft (3), described the first gear (7) meshes with the first tooth portion of the housing of described diff (1), described the second gear (8) and the 3rd gear (9) engagement, described the 3rd gear (9) is arranged at least one of described the first jack shaft (2) and the second jack shaft (3), described the first gear (7) and the second gear (8) can be by described power-transfer clutch (6) be engaged into action edge transmission, and described the first gear (7) and the second gear (8) can have transmission fastener relative to each other slippage under engagement state of speed discrepancy and described power-transfer clutch (6).
2. drive axle according to claim 1, is characterized in that, the output shaft of described propulsion source and described the first jack shaft (2) and the second jack shaft (3) be arranged in parallel.
3. drive axle according to claim 1, it is characterized in that, described the first gear (7), the second gear (8) and the 3rd gear (9) have respectively make when the operation of described gear cluster described in the rotating speed of the first gear (7) be greater than the number of teeth of the rotating speed of described the second gear (8).
4. according to the drive axle described in any one in claims 1 to 3, it is characterized in that, described propulsion source is motor (10).
5. drive axle according to claim 4, it is characterized in that, described drive axle comprises multi-stage speed-reducing gear cluster, the output shaft of the chopped-off head train of reduction gears in this multi-stage speed-reducing gear cluster and described motor (10) is in transmission connection, and the second tooth portion of the housing of final reduction gear group and described diff (1) is in transmission connection.
6. according to the drive axle described in any one in claims 1 to 3, it is characterized in that, the transmission fastener of described power-transfer clutch (6) comprises can first clutch sheet (61) and the second clutch sheet (62) with contacting separated from one another, described first clutch sheet (61) and second clutch sheet (62) are respectively a plurality of, and described first clutch sheet (61) is connected in described the first gear (7), described second clutch sheet (62) is connected in described the second gear (8).
7. according to the drive axle described in any one in claims 1 to 3, it is characterized in that, in described diff (1), also comprise parallel and the first bevel planet gear that be oppositely arranged (13) and the second bevel planet gear (14), described the first bevel planet gear (13) and described two axle side gears engagement, and perpendicular to described two axle side gears, described the second bevel planet gear (14) and described two axle side gears engagement, and perpendicular to described two axle side gears.
8. according to the drive axle described in any one in claims 1 to 3, it is characterized in that, described diff (1) is positioned at the housing of described drive axle, and described the first gear (7) and the second gear (8) are arranged on respectively in the installation shaft of the housing that is fixed on described drive axle and can be around this installation shaft rotation.
9. a vehicle, it is characterized in that, this vehicle comprises according to the drive axle described in any one in claim 1 to 8, and wherein, described the first jack shaft (2) and the second jack shaft (3) are connected to the first drive wheel (4) and the second drive 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 true CN103978894A (en) | 2014-08-13 |
| CN103978894B 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435684A (en) * | 2018-12-03 | 2019-03-08 | 北方民族大学 | A kind of four-wheel drive device |
| CN110023128A (en) * | 2016-12-13 | 2019-07-16 | 本田技研工业株式会社 | The torque control device of four-wheel drive vehicle |
| CN110182225A (en) * | 2019-06-25 | 2019-08-30 | 北京城景空间智能交通科技中心(有限合伙) | A kind of bogie structure |
| CN116357714A (en) * | 2023-05-30 | 2023-06-30 | 深圳市先发智能有限公司 | Novel differential and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01182127A (en) * | 1988-01-11 | 1989-07-20 | Honda Motor Co Ltd | Right and left wheel driving equipment for vehicle |
| CN2168752Y (en) * | 1993-05-20 | 1994-06-15 | 李文华 | Differential transmission with overrunning clutch |
| JPH11344103A (en) * | 1998-06-02 | 1999-12-14 | Tochigi Fuji Ind Co Ltd | Differential gear |
| US20050209761A1 (en) * | 2004-03-19 | 2005-09-22 | Larry Elie | Magnetic powder torque transfer clutch for controlling slip across a differential mechanism |
| CN101680520A (en) * | 2007-05-10 | 2010-03-24 | 丰田自动车株式会社 | Driving force control device for vehicle |
| 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01182127A (en) * | 1988-01-11 | 1989-07-20 | Honda Motor Co Ltd | Right and left wheel driving equipment for vehicle |
| CN2168752Y (en) * | 1993-05-20 | 1994-06-15 | 李文华 | Differential transmission with overrunning clutch |
| JPH11344103A (en) * | 1998-06-02 | 1999-12-14 | Tochigi Fuji Ind Co Ltd | Differential gear |
| US20050209761A1 (en) * | 2004-03-19 | 2005-09-22 | Larry Elie | Magnetic powder torque transfer clutch for controlling slip across a differential mechanism |
| CN101680520A (en) * | 2007-05-10 | 2010-03-24 | 丰田自动车株式会社 | Driving force control device for vehicle |
| CN203600984U (en) * | 2013-11-12 | 2014-05-21 | 吉林大学 | Liquid drive hybrid power system with traditional differential mechanism as coupling device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110023128A (en) * | 2016-12-13 | 2019-07-16 | 本田技研工业株式会社 | The torque control device of four-wheel drive vehicle |
| CN110023128B (en) * | 2016-12-13 | 2022-09-23 | 本田技研工业株式会社 | Torque control device for four-wheel drive vehicle |
| CN109435684A (en) * | 2018-12-03 | 2019-03-08 | 北方民族大学 | A kind of four-wheel drive device |
| CN110182225A (en) * | 2019-06-25 | 2019-08-30 | 北京城景空间智能交通科技中心(有限合伙) | A kind of bogie structure |
| 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 |
| CN116357714A (en) * | 2023-05-30 | 2023-06-30 | 深圳市先发智能有限公司 | Novel differential and control method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103978894B (en) | 2017-03-22 |
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Granted publication date: 20170322 |