CN105291698A - Hollow motor and hollow motor electromobile rear axle - Google Patents
Hollow motor and hollow motor electromobile rear axle Download PDFInfo
- Publication number
- CN105291698A CN105291698A CN201410281945.5A CN201410281945A CN105291698A CN 105291698 A CN105291698 A CN 105291698A CN 201410281945 A CN201410281945 A CN 201410281945A CN 105291698 A CN105291698 A CN 105291698A
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- Prior art keywords
- reductor
- diff
- motor
- rear axle
- shaft
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Abstract
The invention discloses a hollow motor and a hollow motor electromobile rear axle, and belongs to the field of transportation vehicles. The hollow motor electromobile rear axle is characterized in that a rotating shaft is in a hollow structure over the entire length, and is directly or indirectly coupled to an input gear of a differential mechanism, and a half shaft penetrates through the hollow structure of the rotating shaft and is connected to an output gear on one side of the differential mechanism. With the adoption of the hollow motor and the hollow motor electromobile rear axle, the possibility of failures such as belt loosening or gap loosing caused by connection between a rear axle differential mechanism and a speed reducer or a motor in the prior art can be reduced, the failures caused by malalignment of the centers of the shafts among the motor, the speed reducer and the differential mechanism can be avoided, , and connection parts are prevented from being influenced by environmental factors.
Description
Technical field
The present invention relates to a kind of motor and motor rear axle, particularly a kind of core motor and core motor motor rear axle, belong to motor and electric automobiles.
Background technology
In battery-driven car industry, semiaxis and the motor as actuating device on general motor rear axle both sides, reductor and diff main shaft are not concentric shafts, because decentraction connects, connection between reductor and diff is not connected by belt, gear is utilized to link together, if utilize belt to connect, just relate to the adjustment of the distance between main shaft, if utilize gear connection just to relate to the techniques such as the gap adjustment between gear, and, in operation process, usually because of distance or the change in gap or not parallel between axle and axle, produce various fault, need often maintenance, for this reason, all expect to have a kind of need not often because the driving structure of electric vehicle that the spacing of motor and battery-driven car semiaxis or gap carry out keeping in repair occurs.
Summary of the invention
The problem of keeping in repair is carried out for appearance distance frequent between motor rear axle motor and axle drive shaft two semiaxis or clearance issues, the invention provides a kind of core motor and core motor motor rear axle, its objective is the maintenance frequency reducing battery-driven car, improve the stability that battery-driven car runs.
The technical scheme of this invention is core motor, comprise rotor shaft, the whole length of described rotating shaft is hollow structure, the whole length of described rotating shaft is hollow structure, described rotating shaft is directly or indirectly attached to the input gear of diff, one of them semiaxis from the hollow structure of rotating shaft through the output gear being connected to diff side, the rotor shaft of described core motor is connected to the input gear of reductor, the rotating shaft of described reductor input gear is set to hollow shaft, described hollow shaft and motor rotor shaft hollow structure are connected, the output of reductor is connected to the input gear of diff, the side of described semiaxis from the hollow structure and hollow shaft of rotor shaft through the output gear being connected to diff side, described core motor rotor shaft, the output gear axis of reductor input gear hollow shaft and diff is on same straight line, described reductor is planetary reducer, reductor planet wheel disc is connected on reductor planet wheel spindle, reductor planet wheel disc is the output of reductor, described core motor, reductor, it is airtight connection between diff, the pinion carrier of described reductor planet wheel disc and diff is connected as a single entity, differential carrier is fixed with relatively two diff input gear axles, described diff input gear is satellite gear, two differential spider wheels engage with two diff sun wheels, two diff sun wheels export two semiaxis respectively to.
The good effect that this invention has is, rear-axle differential in prior art can be lowered be connected the belt that causes with between reductor or motor and loosen or the fault such as backlash, also can avoid because of the not parallel fault caused in the axle center between motor, reductor and diff, due to the connection mode that this back axle technical scheme is co-axial seal type, avoid the impact that connecting portion is subject to environmental factor, there is the feature of failure rate is low, stable performance.
Accompanying drawing explanation
Fig. 1 core motor motor rear axle generalized section.
The reductor schematic cross-section of Fig. 2 core motor motor rear axle.
The diff schematic cross-section of Fig. 3 core motor motor rear axle.
The diff end view of Fig. 4 core motor motor rear axle.
Detailed description of the invention
Be described with regard to technical scheme of the present invention referring to figure, in figure, 100: core motor, 200: reductor, 300: diff, 101: hollow shaft, 201: internal gear, 202: one of reductor satellite gear, 203: reductor sun wheel, 204a: semiaxis one, 204b: semiaxis two, 205: reductor planet wheel disc, 206: one of reductor planet wheel spindle, 300: diff, 301: differential carrier, 302: differential spider wheel shaft, 303a: differential spider wheel one, 303b: differential spider wheel two, 304a: diff sun wheel one, 304b: diff sun wheel two, 401: diff shell, 402: diff hollow shaft bearing, 403: diff sun wheel hollow shaft, 404: diff sun wheel hollow shaft and half shaft clearance.
Core motor 100 of the present invention, comprise rotor shaft 101, the whole length of described rotating shaft 101 is hollow structure, the whole length of described rotating shaft 101 is hollow structure, Fig. 1 core motor motor rear axle generalized section, this core motor motor rear axle is by core motor 100, reductor 200 and diff 300 are formed, the reductor schematic cross-section of Fig. 2 core motor motor rear axle, described core motor rotor shaft 101 is connected with reductor input, described reductor is input as reductor sun wheel 203, the periphery of reductor sun wheel 203 is all partially provided with multiple reductor satellite gear, reductor satellite gear outermost end be provided with internal gear 201.Fig. 3 is the diff schematic cross-section of core motor motor rear axle, described rotating shaft 101 is directly or indirectly attached to the input gear of diff, in this enforcement example, the input gear of diff is that differential spider takes turns a 303a and differential spider takes turns a 303b, one of them semiaxis from the hollow structure of rotating shaft 101 through the output gear being connected to diff side, in this enforcement example, the output gear of diff side is diff sun wheel 304a, the rotor shaft 101 of described core motor 100 is connected to the input gear of reductor, in this enforcement example, the input gear of described reductor is reductor sun wheel 203, the rotating shaft of described reductor input gear is set to hollow shaft, described hollow shaft and motor rotor shaft hollow structure are connected, the output of reductor is connected to the input gear of diff, in this enforcement example, the input gear of diff is that differential spider takes turns a 303a and differential spider takes turns two 303b, the side of described semiaxis from the hollow structure and hollow shaft of rotor shaft through the output gear being connected to diff side, in this enforcement example, the side of described semiaxis is semiaxis one 204a, the output gear of described diff side is diff sun wheel one 304a, semiaxis and semiaxis two 204b of diff sun wheel two 304b be oppositely arranged with diff sun wheel one 304a and other side are connected, described diff sun wheel one 304a and diff sun wheel two 304b and differential spider are taken turns a 303a and differential spider and are taken turns two 303b and engage, the differential carrier 301 be integrated with reductor planet wheel disc 205 is fixed with differential spider wheel shaft 302, the two ends of described differential spider wheel shaft 302 are all connected in tubular differential carrier 301, on the locus of described differential spider wheel shaft 302 centre portion between two that are connected with semiaxis one 204a and semiaxis 204b diff sun wheel one 304a be oppositely arranged and diff sun wheel two 304b, and with two-semiaxle axis perpendicular, when reductor planet wheel disc 205 drives differential carrier 301 to rotate, differential spider wheel shaft 302 is also along with differential carrier 301 rotates, to be fixed on differential spider wheel shaft 302 and the differential spider be oppositely arranged takes turns a 303a and differential spider wheel shaft two 303b also rotates thereupon, differential spider wheel shaft 302 takes turns the S. A. that a 303a and differential spider take turns two 303b for differential spider, the differential spider rotated is taken turns a 303a and differential spider and is taken turns two 303b and drive and to take turns a 303a and differential spider with differential spider and take turns diff sun wheel one 304a that two 303b mesh together and diff sun wheel two 304b and rotate.
The output gear axis of described core motor rotor shaft 101, reductor input gear hollow shaft and diff is on same straight line, described reductor is planetary reducer, reductor planet wheel disc 205 is connected on reductor planet wheel spindle, 206 is one of reductor planet wheel spindle, reductor planet wheel disc 205 is the output of reductor, described diff input gear is satellite gear, two differential spider wheels engage with two diff sun wheels, and two diff sun wheels export two semiaxis respectively to.
In the present embodiment, reductor planet wheel disc 205 is connected on three planet wheel spindles of reductor, 202 is one of reductor satellite gear, reductor planet wheel disc is wherein the output of reductor, described core motor 100, reductor 200, it is airtight connection between diff 300, described reductor planet wheel disc 205 connects 301 with the pinion carrier of diff and is integrated, also bearing is set between hollow shaft and shell, Fig. 4 is the diff end view of core motor motor rear axle, diff hollow shaft bearing 402 is provided with between the shell 401 of diff 200 and diff sun wheel hollow shaft 403, in order to ensure the smooth running of semiaxis, certain gap is provided with between hollow shaft and semiaxis, diff sun wheel hollow shaft and half shaft clearance 404 is provided with between diff hollow shaft and semiaxis two 204b in Fig. 4.
Utilize this core motor and core motor motor rear axle can lower rear-axle differential in prior art to be connected the belt that causes with between reductor or motor and to loosen or the fault such as backlash, also can avoid because of the not parallel fault caused in the axle center between motor, reductor and diff, due to the connection mode that this back axle technical scheme is co-axial seal type, avoid the impact that connecting portion is subject to environmental factor, there is the feature of failure rate is low, stable performance.
Claims (7)
1. core motor, comprises rotor shaft, it is characterized in that: the whole length of described rotating shaft is hollow structure.
2. core motor motor rear axle, comprise core motor, described core motor comprises rotor shaft, it is characterized in that: the whole length of described rotating shaft is hollow structure, described rotating shaft is directly or indirectly attached to the input gear of diff, one of them semiaxis from the hollow structure of rotating shaft through the output gear being connected to diff side.
3. core motor motor rear axle according to claim 2, it is characterized in that: the rotor shaft of described core motor is connected to the input gear of reductor, the rotating shaft of described reductor input gear is set to hollow shaft, described hollow shaft and machine shaft hollow structure are connected, the output of reductor is connected to the input gear of diff, described semiaxis from the hollow structure and hollow shaft of rotating shaft through the output gear being connected to diff side.
4. core motor motor rear axle according to claim 3, is characterized in that: the output gear axis of described core motor rotor shaft, reductor input gear hollow shaft and diff is on same straight line.
5. core motor motor rear axle according to claim 3, is characterized in that: described reductor is planetary reducer, and reductor planet wheel disc is connected on reductor planet wheel spindle, and reductor planet wheel disc is as the output of reductor.
6. core motor motor rear axle according to claim 3, is characterized in that: be airtight connection between described core motor, reductor, diff.
7. core motor motor rear axle according to claim 5, it is characterized in that: the pinion carrier of described reductor planet wheel disc and diff is connected as a single entity, the pinion carrier of diff is fixed with differential spider wheel shaft, differential spider wheel engages with diff sun wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281945.5A CN105291698A (en) | 2014-06-23 | 2014-06-23 | Hollow motor and hollow motor electromobile rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281945.5A CN105291698A (en) | 2014-06-23 | 2014-06-23 | Hollow motor and hollow motor electromobile rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105291698A true CN105291698A (en) | 2016-02-03 |
Family
ID=55189810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410281945.5A Pending CN105291698A (en) | 2014-06-23 | 2014-06-23 | Hollow motor and hollow motor electromobile rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105291698A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548836Y (en) * | 2002-04-10 | 2003-05-07 | 武汉理工大学 | Coaxial assembled unitary driving axle for small three or four wheel electric vehicle |
| CN101032921A (en) * | 2007-04-06 | 2007-09-12 | 上海中上汽车科技有限公司 | Different velocity motor drive system for electric car |
| CN101602326A (en) * | 2009-07-06 | 2009-12-16 | 奇瑞汽车股份有限公司 | A kind of differential retarder |
| EP1469232A3 (en) * | 2003-04-18 | 2010-04-07 | Kabushiki Kaisha Toyota Jidoshokki | Differential apparatus |
| CN202507917U (en) * | 2012-02-29 | 2012-10-31 | 长城汽车股份有限公司 | Power assembly of electric automobile |
| CN203920260U (en) * | 2014-06-23 | 2014-11-05 | 杨皓捷 | Core motor and core motor motor rear axle |
-
2014
- 2014-06-23 CN CN201410281945.5A patent/CN105291698A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548836Y (en) * | 2002-04-10 | 2003-05-07 | 武汉理工大学 | Coaxial assembled unitary driving axle for small three or four wheel electric vehicle |
| EP1469232A3 (en) * | 2003-04-18 | 2010-04-07 | Kabushiki Kaisha Toyota Jidoshokki | Differential apparatus |
| CN101032921A (en) * | 2007-04-06 | 2007-09-12 | 上海中上汽车科技有限公司 | Different velocity motor drive system for electric car |
| CN101602326A (en) * | 2009-07-06 | 2009-12-16 | 奇瑞汽车股份有限公司 | A kind of differential retarder |
| CN202507917U (en) * | 2012-02-29 | 2012-10-31 | 长城汽车股份有限公司 | Power assembly of electric automobile |
| CN203920260U (en) * | 2014-06-23 | 2014-11-05 | 杨皓捷 | Core motor and core motor motor rear axle |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |