CN104553716A - Double-motor direct-driving half-shaft electric vehicle rear axle - Google Patents
Double-motor direct-driving half-shaft electric vehicle rear axle Download PDFInfo
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- CN104553716A CN104553716A CN201310519202.2A CN201310519202A CN104553716A CN 104553716 A CN104553716 A CN 104553716A CN 201310519202 A CN201310519202 A CN 201310519202A CN 104553716 A CN104553716 A CN 104553716A
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- rear axle
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Abstract
The invention discloses a double-motor direct-driving half-shaft electric vehicle rear axle, and belongs to the technical field of an electric vehicle. The rear axle comprises half shafts, wherein two motors are arranged on the rear axle, each motor is connected with and drives one half shaft, and the power output ends of the two motors are arranged at one end, connected with a wheel hub, near the rear axle. The double-motor direct-driving half-shaft electric vehicle rear axle has the advantages that the double motors are used for directly driving the two half shafts, the high-torque and high-power output can be realized, the direct driving efficiency is high, the half shafts can become shorter, and the manufacturing of the half shafts is easier.
Description
Technical field
The present invention relates to a kind of motor rear axle, particularly the direct jack shaft motor rear axle of a kind of double-motor, belongs to vehicle technology field.
Background technology
Electronlmobil in recent years, electro-tricycle due to its environmental-protecting performance and the development of cheap usage charges rapidly, the back axle manufacture of battery-driven car and demand present fast development trend, back axle on battery-driven car generally adopts a driven by motor reductor access diff to drive two semiaxis on back axle to rotate, this back axle is arranged a motor, for miniwatt, the use occasion of low moment of torsion can meet the demands substantially, but for superpower, the use occasion of high pulling torque can not meet the demands on the one hand completely, the moment of torsion transmitted on the other hand and power excessive when motor easily damage, in recent years, battery-driven car is more and more extensive as the use of loading purposes, larger power and moment of torsion is needed to export when loading, and also there is the trend progressively popularized in remote mountain areas in battery-driven car, on the hill path needing frequent uphill/downhill, normal and the safety traffic of battery-driven car needs to possess superpower, the output characteristic of high pulling torque, in order to adapt to this demand, traditional way is the power increasing drive motor, but generally along with its volume of increase of power also will increase, bring the problem in space to corresponding rear assembling, so simple, by increasing power of motor, can not to adapt to battery-driven car completely high-power, the development need that high moment of torsion exports, excessive motor volume brings problem spatially substantially cannot realize in the design of some vehicles to the installation of back axle, in existing market practice, need one can export high moment of torsion, high-performance motor rear axle.
Summary of the invention
The object of the invention is to overcome high-power, high moment of torsion when current battery-driven car exports and realize more difficult problem, provide a kind of double-motor direct jack shaft motor rear axle.
For realizing object of the present invention, the technical solution adopted in the present invention is: the direct jack shaft motor rear axle of double-motor, comprise semiaxis, described back axle is provided with two motors, each motor connects driving semiaxis, two described motor power mouths are arranged on the one end connecting wheel hub near back axle, the axis of two described motors point-blank or parallel, two described motors export and are provided with reductor, reductor is provided with driving gear, semiaxis is provided with ring gear, driving gear is meshed with ring gear and drives ring gear, described back axle is provided with axle retainer.
The Advantageous Effects of the technical solution adopted in the present invention is: adopt double-motor Direct driver two semiaxis, high moment of torsion can be realized, high-performance output, Direct driver efficiency is high, two motor power mouths are arranged on the one end connecting wheel hub near back axle, two motor afterbodys are relatively lived and are circumferentially partly being overlapped, semiaxis can be made to become shorter, make the manufacture of semiaxis more easy, reduce the standard that semiaxis manufactures, structure of the present invention is simple, be easy to realize, be used in motor rear axle can realize high-power, the output of high moment of torsion, the manufacturing cost of battery-driven car semiaxis can be reduced.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of one embodiment of the present invention.
Fig. 2 is the schematic diagram of another embodiment of the present invention.
Detailed description of the invention
In order to better understand and implement technical scheme of the present invention, provide some embodiments of the present invention at this, these embodiments, in order to better explain technical solutions according to the invention, are not formed any form restriction of the present invention.
The direct jack shaft motor rear axle of double-motor, comprise semiaxis, described back axle is provided with two motors, each motor connects driving semiaxis, two described motor power mouths are arranged on the one end connecting wheel hub near back axle, the mouth of what machine adopted when arranging motor drive direction is two motors away from, the axis of two described motors point-blank or parallel, two described motors export and are provided with reductor, reductor is provided with driving gear, semiaxis is provided with ring gear, driving gear is meshed with ring gear and drives ring gear, described back axle is provided with axle retainer, registration device can for being arranged on bearing on semiaxis or axle sleeve, the either side of ring gear can be arranged on, semiaxis can not be subjected to displacement diametrically, can also axially rotate, realize power transmission.Two motors of the present invention can adopt a controller to realize controlling, also two controllers can be adopted to control separately, when electronic differential regulates, due to the effect of controller current limiting, limit the Driving Torque of single motor, make single motor be not enough to drive car load, the common driving of double-motor, can realize the self-regulating function of electronic differential, both sides transmission also can adopt E-Diff to realize differential.
The present invention is further elaborated by reference to the accompanying drawings, and in accompanying drawing, each mark is depicted as: 1-1: motor a; 2-1: reductor a; 3-1: driving gear a; 4-1: axle drive shaft a; 5-1: ring gear a; 6-1: semiaxis a; 1-2: motor b; 2-2: reductor b; 3-2: driving gear b; 4-2: axle drive shaft b; 5-2: ring gear b; 6-2: semiaxis b; The mouth of two motors shown in Fig. 1 away from, the axis of two motors point-blank, the mouth of two motors shown in Fig. 2 away from, two motors are positioned at the upper and lower of back axle respectively relatively, the axis being parallel of two motors.
In accompanying drawing 1, back axle arranges two motors, be respectively motor a1-1, motor b1-2, the axis of two motors point-blank, the mouth direction of two motors is contrary, the mouth of motor a1-1 connects reductor a2-1, the output driving shaft a4-1 of reductor a2-1 is fixedly connected with driving gear a3-1, driving gear a4-1 is meshed with the ring gear a5-1 on semiaxis a6-1, the Power output of motor a drives ring gear a5-1 jack shaft a to rotate by driving gear a4-1, back axle can set the registration device of semiaxis a, radial location bearing can be adopted to position semiaxis a, the mouth of motor b1-2 connects reductor b2-2, the output driving shaft b4-2 of reductor b2-2 is fixedly connected with driving gear b3-2, driving gear b4-2 is meshed with the ring gear b5-2 on semiaxis b6-2, the Power output of motor b drives ring gear b5-2 jack shaft b to rotate by driving gear b4-2, back axle can set the registration device of semiaxis b, radial location bearing can be adopted to position semiaxis b.
The mouth of two motors shown in Fig. 2 away from, two motors are positioned at the upper and lower of back axle respectively relatively, the axis being parallel of two motors, in the embodiment of fig. 2, two motors upwards have intersection at rear axle beam, semiaxis circumferentially staggers setting, and the axis of two motors gets 180 along the angle of the circumferencial direction of half shaft section circle
o, when installing space can realize, the axis of two motors can be selected comparatively flexibly along the angle of the circumferencial direction of half shaft section circle, also can be 120
o, 90
odeng angle, in the present embodiment, Dual-motors Driving technical scheme of the present invention also can be realized when back axle is shorter.
After describing various specific embodiment of the present invention above in detail, those of ordinary skill in the art should be well understood to, according to the various common practise of this area, can carry out various equivalent variations, equivalent replacement according to thinking of the present invention or simply revise, these all should belong to the scope of technical solution of the present invention.
Claims (4)
1. the direct jack shaft motor rear axle of double-motor, comprises semiaxis, it is characterized in that: described back axle is provided with two motors, and each motor connects driving semiaxis, and two described motor power mouths are arranged on the one end connecting wheel hub near back axle.
2. the direct jack shaft motor rear axle of double-motor according to claim 1, is characterized in that: the axis of two described motors point-blank or parallel.
3. the direct jack shaft motor rear axle of double-motor according to claim 1, it is characterized in that: two described motors export and are provided with reductor, reductor is provided with driving gear, semiaxis is provided with ring gear, driving gear is meshed with ring gear and drives ring gear.
4. the direct jack shaft motor rear axle of double-motor according to claim 1, is characterized in that: described back axle is provided with axle retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519202.2A CN104553716A (en) | 2013-10-29 | 2013-10-29 | Double-motor direct-driving half-shaft electric vehicle rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519202.2A CN104553716A (en) | 2013-10-29 | 2013-10-29 | Double-motor direct-driving half-shaft electric vehicle rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104553716A true CN104553716A (en) | 2015-04-29 |
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ID=53071192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519202.2A Pending CN104553716A (en) | 2013-10-29 | 2013-10-29 | Double-motor direct-driving half-shaft electric vehicle rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104553716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730730A (en) * | 2017-06-08 | 2020-01-24 | 戴姆勒股份公司 | Drive device for a motor vehicle, in particular a commercial vehicle |
| CN117656802A (en) * | 2020-11-30 | 2024-03-08 | 比亚迪股份有限公司 | Wheel drive assembly and vehicle |
-
2013
- 2013-10-29 CN CN201310519202.2A patent/CN104553716A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730730A (en) * | 2017-06-08 | 2020-01-24 | 戴姆勒股份公司 | Drive device for a motor vehicle, in particular a commercial vehicle |
| CN110730730B (en) * | 2017-06-08 | 2022-11-01 | 戴姆勒卡车股份公司 | Drive device for a motor vehicle, in particular a commercial vehicle |
| CN117656802A (en) * | 2020-11-30 | 2024-03-08 | 比亚迪股份有限公司 | Wheel drive assembly and vehicle |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |