CN203819013U - Central-positioned motor drive axle - Google Patents
Central-positioned motor drive axle Download PDFInfo
- Publication number
- CN203819013U CN203819013U CN201420080858.9U CN201420080858U CN203819013U CN 203819013 U CN203819013 U CN 203819013U CN 201420080858 U CN201420080858 U CN 201420080858U CN 203819013 U CN203819013 U CN 203819013U
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- CN
- China
- Prior art keywords
- gear
- motor
- axle
- motor drive
- drive axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 206010036590 Premature baby Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model relates to a central-positioned motor drive axle, which comprises an axle housing, a motor, a planetary reducer, a mechanical differential mechanism and a hub, wherein the motor is arranged in the center of the axle housing, and comprises a motor shell, a motor stator, a motor rotator and a motor shaft; the motor rotator is connected with the motor shaft to drive the motor shaft to rotate; the planetary reducer comprises a sun gear, a plurality of planet wheels and a planet carrier; the sun gear is connected with the motor shaft; the planet wheels are engaged with the sun gear; the planet carrier is connected with the planet wheels; the mechanical differential mechanism comprises a half axle gear, a differential mechanism planetary gear and a cross shaft; the cross shaft is fixedly connected with the planet carrier in the planetary reducer and is rotated under the drive of the planet carrier; the differential mechanism planetary gear is arranged on the cross shaft; the half axle gear is engaged with the differential mechanism planetary gear; the hub is connected with the half axle gear through a half axle and is rotated under the drive of the half axle gear. The central-positioned motor drive axle integrates the motor, the planetary reducer and the mechanical differential mechanism into a whole, so that the space of a whole automobile can be greatly saved, and the arrangement is more flexible.
Description
Technical field
The utility model relates to drive system of electric automobile field, relates in particular to the middle motor drive axle that a kind of motor, retarder, diff are integrated in one.
Background technology
Motor drive axle, as the inevitable technical development path of pure electronic and hybrid vehicle, is one of new-energy automobile key components and parts.Electric motor of automobile bridge, compared with conventional drive mode, saves change speed gear box and transmission shaft, is the leap of car transmissions.Popular motor drive axle is mainly the wheel motor drive axle that adopts wheel motor actuation techniques at present, but due to its Dual-motors Driving adopting, need electronic differential, and still prematurity of electronic differential technology at present, control cost height, reliability is poor, and when real-world operation, tire easily weares and teares.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of middle motor drive axle.
For addressing the above problem, the technical solution adopted in the utility model is:
Middle motor drive axle, it is characterized in that: it comprises axle housing, motor, planetary reduction gear, mechanical differential gear box, wheel hub, described electric machine built-in is in the center of axle housing, comprise motor casing, motor stator, rotor and motor shaft, described rotor is connected with motor shaft, and drive motor axle rotates, described planetary reduction gear comprises sun wheel, multiple satellite gears and pinion carrier, described sun wheel is connected with motor shaft, under driving, motor shaft rotates, described satellite gear engages with sun wheel, described pinion carrier is connected with satellite gear, under driving, satellite gear rotates, described mechanical differential gear box comprises axle side gear, differential pinion gear and center cross, described center cross connects firmly mutually with the pinion carrier in planetary reduction gear, under the drive of pinion carrier, rotate, described differential pinion gear is located on center cross, described axle side gear is meshed with differential pinion gear, described wheel hub is connected with the axle side gear in mechanical differential gear box by semiaxis, under driving, it rotates.
Press such scheme, described motor casing forms cyclic water channel with axle housing phase fit, for carrying out cooling to described motor.
Press such scheme, described rotor end is provided with speed sensor.
Press such scheme, also comprise internally toothed annulus in described planetary reduction gear, described internally toothed annulus engages with satellite gear.
Press such scheme, on described wheel hub, brake disc is housed, form brake system with the brake chamber that is installed in the drg on axle housing and be installed on drg, driving and braking during standstill are provided.
Press such scheme, on described axle housing, have spring block, for being connected with vehicle chassis.
The driving process of middle motor drive axle, the moment of torsion that described rotor produces is exported by motor shaft, drive the sun wheel in planetary reduction gear to rotate, described sun wheel transfers torque to satellite gear, satellite gear drives pinion carrier to rotate, pinion carrier is connected with the center cross in mechanical differential gear box, moment of torsion is delivered to axle side gear via differential pinion gear, finally be delivered to semiaxis, drive hub rotates, while turning to, axle side gear and differential pinion gear in described mechanical differential gear box distribute moment of torsion, and be delivered to both sides semiaxis, realize differential steering.Described wheel hub drives brake disc rotation in driving wheel, and when braking, drg compresses described brake disc, forces hub reduction until stop by friction.
The beneficial effects of the utility model:
1, the utility model provides middle motor drive axle current collection machine, planetary reduction gear, mechanical differential gear box be in one, has that volume is little, lightweight, a little and transmission power advantages of higher of compact conformation, outer wealthy size, greatly saved the space of car load.
2, on arrangement, compare the defect that wheel motor bridge is limited by arrangement space (vehicle frame, suspension, ground Clearance), middle motor drive axle cloth is set up more flexible, can adopt plate spring structure, and motor size also can be larger, can realize more high-power.
What 3, middle motor drive axle adopted is that single motor, single control module drive, and with respect to wheel motor bridge, cost is low.
Brief description of the drawings
Fig. 1 is the part sectional view of middle motor drive axle of the present utility model;
Fig. 2 is transmission of power sketch of the present utility model;
In figure: 1 pinion carrier; 2 motor casings; 3 motor stators; 4 rotors; 5 speed sensors; 6 semiaxis; 7 motor shafts; 8 sun wheels; 9 satellite gears; 10 internally toothed annuluss; 11 axle side gears; 12 differential pinion gears; 13 center crosss; 14 brake chamber; 15 axle housings; 16 wheel hubs; 17 brake discs; 18 drgs; 19 spring blocks.
Detailed description of the invention
As shown in Figure 1, middle motor drive axle, comprise axle housing, motor, planetary reduction gear, mechanical differential gear box, wheel hub, described electric machine built-in is in the center of axle housing (15), comprise motor casing (2), motor stator (3), rotor (4) and motor shaft, described rotor is connected with motor shaft, and drive motor axle rotates; Shown rotor end is provided with speed sensor (5), described planetary reduction gear comprises sun wheel, 5 satellite gears, internally toothed annulus and pinion carriers, described sun wheel (8) is connected with motor shaft (7), under driving, motor shaft rotates, described satellite gear (9) engages with sun wheel, described pinion carrier (1) is connected with satellite gear, under satellite gear drives, rotates, and described internally toothed annulus engages with satellite gear.Described mechanical differential gear box comprises axle side gear, differential pinion gear and center cross, differential pinion gear (12) is meshed with axle side gear (11), described center cross (13) is connected with the pinion carrier in planet accelerator, under the drive of pinion carrier, rotate, described wheel hub (16) is individual, respectively be connected with axle side gear by a semiaxis (6), under axle side gear drives, rotate.Brake disc (17) is housed on described wheel hub, forms brake system with the brake chamber (14) that is installed in the drg (18) on axle housing (15) and be installed on drg, driving and braking during standstill are provided.Described motor casing forms cyclic water channel with axle housing phase fit, for carrying out cooling to described motor.On described axle housing, there is spring block (19), for being connected with vehicle chassis.
The driving process of this middle motor drive axle is shown in Fig. 2: the moment of torsion that described rotor produces is exported by motor shaft (7), drive the sun wheel (8) in planetary reduction gear to rotate, described sun wheel transfers torque to satellite gear (9), satellite gear drives pinion carrier (1) to rotate, pinion carrier is connected with the center cross (13) in mechanical differential gear box, moment of torsion is delivered to axle side gear (11) via differential pinion gear (12), finally be delivered to semiaxis, drive hub rotates, while turning to, axle side gear and differential pinion gear in described mechanical differential gear box distribute moment of torsion, and be delivered to both sides semiaxis, realize differential steering.Described wheel hub drives brake disc rotation in driving wheel, and when braking, drg compresses described brake disc, forces hub reduction until stop by friction.
Claims (6)
1. middle motor drive axle, it is characterized in that: it comprises axle housing, motor, planetary reduction gear, mechanical differential gear box, wheel hub, described electric machine built-in is in the center of axle housing, comprise motor casing, motor stator, rotor and motor shaft, described rotor is connected with motor shaft, and drive motor axle rotates, described planetary reduction gear comprises sun wheel, multiple satellite gears and pinion carrier, described sun wheel is connected with motor shaft, under driving, motor shaft rotates, described satellite gear engages with sun wheel, described pinion carrier is connected with satellite gear, under driving, satellite gear rotates, described mechanical differential gear box comprises axle side gear, differential pinion gear and center cross, described center cross connects firmly mutually with the pinion carrier in planetary reduction gear, under the drive of pinion carrier, rotate, described differential pinion gear is located on center cross, described axle side gear is meshed with differential pinion gear, described wheel hub is connected with the axle side gear in mechanical differential gear box by semiaxis, under driving, it rotates.
2. middle motor drive axle according to claim 1, is characterized in that: described motor casing forms cyclic water channel with axle housing phase fit, for carrying out cooling to described motor.
3. middle motor drive axle according to claim 1, is characterized in that: described rotor end is provided with speed sensor.
4. middle motor drive axle according to claim 1, is characterized in that: in described planetary reduction gear, also comprise internally toothed annulus, described internally toothed annulus engages with satellite gear.
5. middle motor drive axle according to claim 1, is characterized in that: on described wheel hub, brake disc is housed, forms brake system with the brake chamber that is installed in the drg on axle housing and be installed on drg, driving and braking during standstill are provided.
6. middle motor drive axle according to claim 1, is characterized in that: on described axle housing, have spring block, for being connected with vehicle chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080858.9U CN203819013U (en) | 2014-02-25 | 2014-02-25 | Central-positioned motor drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080858.9U CN203819013U (en) | 2014-02-25 | 2014-02-25 | Central-positioned motor drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203819013U true CN203819013U (en) | 2014-09-10 |
Family
ID=51474546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420080858.9U Expired - Fee Related CN203819013U (en) | 2014-02-25 | 2014-02-25 | Central-positioned motor drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203819013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832211A (en) * | 2014-02-25 | 2014-06-04 | 武汉新能车桥技术发展有限公司 | Centrally-arranged motor drive axle |
| CN110997377A (en) * | 2017-06-23 | 2020-04-10 | 罗尔工业公司 | Motorized axle and vehicle equipped with such an axle |
-
2014
- 2014-02-25 CN CN201420080858.9U patent/CN203819013U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832211A (en) * | 2014-02-25 | 2014-06-04 | 武汉新能车桥技术发展有限公司 | Centrally-arranged motor drive axle |
| CN110997377A (en) * | 2017-06-23 | 2020-04-10 | 罗尔工业公司 | Motorized axle and vehicle equipped with such an axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG PENGCHENG Free format text: FORMER OWNER: WUHAN XINNENG SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150702 Address after: 430000 Hubei Province, Wuhan city Jiangxia District canglongdao office Jiufeng Street No. 18 long Ju photoelectron Industrial Park Patentee after: Wang Pengcheng Address before: 430000 Hubei Province, Wuhan city Jiangxia District canglongdao office Jiufeng Street No. 18 long Ju photoelectron Industrial Park Patentee before: Wuhan New Energy Axle Technology Development Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20171124 Address after: Hubei Province, Tianmen Road No. 155 Patentee after: HUBEI XINGXING ELECTRIC DRIVE CO.,LTD. Address before: 430000 Hubei Province, Wuhan city Jiangxia District canglongdao office Jiufeng Street No. 18 long Ju photoelectron Industrial Park Patentee before: Wang Pengcheng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |