CN201646386U - Rear drive axle for ultramicroscopic low-speed pure-electric automobile - Google Patents
Rear drive axle for ultramicroscopic low-speed pure-electric automobile Download PDFInfo
- Publication number
- CN201646386U CN201646386U CN2010201639217U CN201020163921U CN201646386U CN 201646386 U CN201646386 U CN 201646386U CN 2010201639217 U CN2010201639217 U CN 2010201639217U CN 201020163921 U CN201020163921 U CN 201020163921U CN 201646386 U CN201646386 U CN 201646386U
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- electric automobile
- rear driving
- superminiature
- axle
- pure electric
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Abstract
The utility model relates to an electric automobile, in particular to a rear drive axle for an ultramicroscopic low-speed pure-electric automobile, which is characterized in that two sides of the rear drive axle are in symmetrical structures, the rear drive axle comprises two motors in symmetrical arrangement, one end of the two motors is connected, the other ends of the two motors is respectively provided with a speed changer, the motors and the speed changers are tightly locked through screw rods for forming a rear drive axle body, output shafts of the speed changers are connected with the inner end of a half axle through splines, the outer end of the half axle is connected with a wheel rim connecting flange through splines, and a braking disc is fixedly arranged on the wheel rim connecting flange. The speed changers of the utility model are directly connected with the half axle, the motive power transmission line is short, and the transmission efficiency is high. The whole rear drive axle has simple structure, organically combines the arrangement of a motive power system, a transmission system and a hanging frame, has light weight (smaller than 110kg), and overcomes the defects of heavy weight, large size, complicated structure, low transmission efficiency and the like of the existing drive axle system.
Description
Technical field
The utility model relates to a kind of electronlmobil, is specially a kind of superminiature low speed pure electric automobile rear driving axle.
Background technology
At present the electrocar on the home market adopts motor preposition forerunner or preposition rear-guard to arrange more, and mostly is the above car of A00 level, there is no bridge system behind the special rearmounted rear-guard of making for superminiature low speed pure electric automobile (wheelbase is less than 2000mm).The drive axle of existing electronlmobil also more adopts motor and change-speed box to be fixed on the vehicle body by suspending, power is delivered to wheel by universal driving device, will inevitably bring the mounting structure complexity that suspends like this, power transmission line is long, shortcomings such as drive axle weight heaviness, thus cause existing drive axle all can not be adopted by superminiature low speed pure electric automobile.
The utility model content
At problems of the prior art, the purpose of this utility model is to provide the technical scheme of the rear driving axle that a kind of compact conformation, power transmission is simple, in light weight, the rational superminiature low speed of vibration noise pure electric automobile is used rearmounted rear-guard arrange.
Described a kind of superminiature low speed pure electric automobile rear driving axle, it is characterized in that the rear driving axle both sides are symmetrical structure, comprise two symmetrically arranged motors, two motor one ends link to each other, the other end is provided with change-speed box respectively, motor and change-speed box constitute the rear driving axle main body by screw rod locking, described transmission output shaft connects semiaxis the inner by spline, the semiaxis outer end connects the wheel rim butt flange by spline, fixedly install brake disc on the wheel rim butt flange, described semiaxis is provided with axle sleeve outward, the axle sleeve inboard is threaded with change-speed box by the axle sleeve inside flange, axle sleeve outside connecting bushing outward flange, install on the axle sleeve outward flange brake caliper is set, described axle sleeve is provided with the horizontal thrust rod bearing, absorber seat and trailing arm bearing, the horizontal thrust rod bearing, absorber seat and trailing arm bearing are respectively by the bolted connection lateral rod, shock absorber and trailing arm.
Described a kind of superminiature low speed pure electric automobile rear driving axle is characterized in that described change-speed box adopts epicyclic reduction gear.
Described a kind of superminiature low speed pure electric automobile rear driving axle is characterized in that being provided with hub bearing between described semiaxis and the axle sleeve outward flange.
Described a kind of superminiature low speed pure electric automobile rear driving axle is characterized in that on the described wheel rim butt flange tyre and rim being installed.
Described a kind of superminiature low speed pure electric automobile rear driving axle is characterized in that described brake caliper adopts the aluminum alloy material.
Described a kind of superminiature low speed pure electric automobile rear driving axle, an end that it is characterized in that described lateral rod, shock absorber and trailing arm is connected horizontal thrust rod bearing, absorber seat and trailing arm bearing respectively, the other end by bolted connection on vehicle body.
Described a kind of superminiature low speed pure electric automobile rear driving axle is characterized in that described lateral rod, shock absorber and trailing arm and body contact place are provided with rubber block respectively.
Described a kind of superminiature low speed pure electric automobile rear driving axle is characterized in that described lateral rod and trailing arm all adopt the aluminum alloy material.
The beneficial effects of the utility model are: 1. motor, change-speed box are in light weight, and mounting structure is simple and practical; 2. change-speed box directly links to each other with semiaxis, and power transmission line is short, the driving efficiency height; 3. suspension rod member quantity is few, and is in light weight, and vibration damping capacity is strong; 4. whole rear driving axle is simple in structure, organically combines power system, driving system and suspension arrangement, and is in light weight, less than 110Kg, overcome that existing drive axle system weight is heavy, bulky, shortcoming such as complex structure, driving efficiency are low.
Description of drawings
Fig. 1 is a structural representation one of the present utility model;
Fig. 2 is a structural representation two of the present utility model;
Fig. 3 is a sectional structure scheme drawing of the present utility model.
Among the figure: 1-motor, 2-change-speed box, 3-screw rod, the 4-lateral rod, 5-trailing arm, 6-shock absorber, the 7-axle sleeve, 8-brake caliper, 9-semiaxis, 10-axle sleeve inside flange, 11-axle sleeve outward flange, 12-hub bearing, the 13-brake disc, 14-wheel rim butt flange, 15-horizontal thrust rod bearing, the 16-absorber seat, 17-trailing arm bearing.
The specific embodiment
Below in conjunction with Figure of description the utility model is described further:
As shown in the figure, a kind of superminiature low speed pure electric automobile rear driving axle, described rear driving axle both sides are symmetrical structure, comprise two symmetrically arranged motors 1, two motor 1 one ends link to each other, the other end is provided with change-speed box 2 respectively, and change-speed box 2 adopts epicyclic reduction gear, and motor 1 and change-speed box 2 constitute the rear driving axle main body by screw rod 3 lockings; Described change-speed box 2 output shafts connect semiaxis 9 the inners by spline, and semiaxis 9 outer ends connect wheel rim butt flange 14 by spline, fixedly install brake disc 13 on the wheel rim butt flange 14, and tyre and rim is installed in the outside; The described semiaxis 9 outer axle sleeves 7 that are provided with, axle sleeve 7 inboards are threaded with change-speed box 2 by axle sleeve inside flange 10, axle sleeve 7 outside connecting bushing outward flanges 11, install on the axle sleeve outward flange 11 brake caliper 8 is set, brake caliper 8 and brake disc 13 interoperations, brake caliper 8 adopts the aluminum alloy material, is provided with hub bearing 12 between semiaxis 9 and the axle sleeve outward flange 11; Described axle sleeve 7 is provided with horizontal thrust rod bearing 15, absorber seat 16 and trailing arm bearing 17, horizontal thrust rod bearing 15, absorber seat 16 and trailing arm bearing 17 link to each other by the end of bolt with lateral rod 4, shock absorber 6 and trailing arm 5 respectively, the other end of lateral rod 4, shock absorber 6 and trailing arm 5 links to each other with vehicle body by rubber block, rubber block can fully absorb the vibration that produces in motor 1 and the car load operational process, lateral rod 4 and trailing arm 5 all adopt the aluminum alloy material, to reduce complete vehicle weight.
Shortcomings such as existing rear driving axle system weight is heavy, bulky in order to overcome for the utility model, complex structure, driving efficiency are low, 1. employing weight-saving power system: double-motor 1 drive arrangement can select for use weight lighter, the motor 1 that volume is littler; 2. reasonable Arrangement driving system, reduce back axle weight: the planetary reduction gear of employing light weight replaces the change speed gear box of traditional car, epicyclic reduction gear directly is arranged in motor 1 outside, two motors 1 and change-speed box 2 constitute the main body of drive axles, because motor 1 and change-speed box 2 volumes are little, in light weight, need not to be suspended on the vehicle body, directly connect motor 1 and change-speed box 2 are supported on the axle sleeve 7 by flange, simplify the structure so greatly, shortened the route of transmission of power, reduced the framing member that motor 1 suspends and needs, because tire and power drive system do not have relative motion in the car load operational process, need not to adopt universal driving device, adopt left and right sides semiaxis 9 direct drive wheels; 3. adopt half trailing arm type suspension to arrange, adopt shock absorber 6 and the series connected integral type vibration insulating system of spring in the driving rear axle trailing arm type suspension system, and the thrust leverage of cooperation aluminium matter alloy material, make suspension property between independent suspension and dependent suspension, and simplified parts such as spring perch, bump rubber; 4. reasonably the rubber block vibration damping is arranged: each thrust leverage and body contact place all adopt the rubber block vibration damping, can fully absorb the vibration that produces in motor 1 and the car load operational process, block the transmission of motor 1 vibration, solved the NVH problem in the car load operational process to vehicle body; 5. adopt the controller of software and hardware combining, solve the problem of dc brushless motor starting shake effectively; 6. adopt the electronic differential function, saved the diff of traditional car heaviness.
Claims (8)
1. superminiature low speed pure electric automobile rear driving axle, it is characterized in that the rear driving axle both sides are symmetrical structure, comprise two symmetrically arranged motors (1), two motor (1) one ends link to each other, the other end is provided with change-speed box (2) respectively, motor (1) and change-speed box (2) constitute the rear driving axle main body by screw rod (3) locking, described change-speed box (2) output shaft connects semiaxis (9) the inner by spline, semiaxis (9) outer end connects wheel rim butt flange (14) by spline, fixedly install brake disc (13) on the wheel rim butt flange (14), the outer axle sleeve (7) that is provided with of described semiaxis (9), axle sleeve (7) is inboard to be threaded with change-speed box (2) by axle sleeve inside flange (10), axle sleeve (7) outside connecting bushing outward flange (11), axle sleeve outward flange (11) is gone up to install brake caliper (8) is set, described axle sleeve (7) is provided with horizontal thrust rod bearing (15), absorber seat (16) and trailing arm bearing (17), horizontal thrust rod bearing (15), absorber seat (16) and trailing arm bearing (17) are respectively by bolted connection lateral rod (4), shock absorber (6) and trailing arm (5).
2. a kind of superminiature low speed pure electric automobile rear driving axle according to claim 1 is characterized in that described change-speed box (2) adopts epicyclic reduction gear.
3. a kind of superminiature low speed pure electric automobile rear driving axle according to claim 1 is characterized in that being provided with hub bearing (12) between described semiaxis (9) and the axle sleeve outward flange (11).
4. a kind of superminiature low speed pure electric automobile rear driving axle according to claim 1 is characterized in that upward installation tyre and rim of described wheel rim butt flange (14).
5. a kind of superminiature low speed pure electric automobile rear driving axle according to claim 1 is characterized in that described brake caliper (8) adopts the aluminum alloy material.
6. a kind of superminiature low speed pure electric automobile rear driving axle according to claim 1, an end that it is characterized in that described lateral rod (4), shock absorber (6) and trailing arm (5) is connected horizontal thrust rod bearing (15), absorber seat (16) and trailing arm bearing (17) respectively, the other end by bolted connection on vehicle body.
7. according to claim 1 or 6 described a kind of superminiature low speed pure electric automobile rear driving axles, it is characterized in that described lateral rod (4), shock absorber (6) and trailing arm (5) and body contact place are provided with rubber block respectively.
8. according to claim 1 or 6 described a kind of superminiature low speed pure electric automobile rear driving axles, it is characterized in that described lateral rod (4) and trailing arm (5) all adopt the aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201639217U CN201646386U (en) | 2010-04-19 | 2010-04-19 | Rear drive axle for ultramicroscopic low-speed pure-electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201639217U CN201646386U (en) | 2010-04-19 | 2010-04-19 | Rear drive axle for ultramicroscopic low-speed pure-electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201646386U true CN201646386U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201639217U Expired - Fee Related CN201646386U (en) | 2010-04-19 | 2010-04-19 | Rear drive axle for ultramicroscopic low-speed pure-electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201646386U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785548A (en) * | 2012-08-06 | 2012-11-21 | 苏州朗格电动车有限公司 | Rear suspension system of electric vehicle |
| CN106080222A (en) * | 2016-05-23 | 2016-11-09 | 刘霄 | A kind of pure power-actuated electric automobile of tandem |
| CN106915233A (en) * | 2017-04-18 | 2017-07-04 | 沈阳永磁电机制造有限公司 | The mechanical difference device drive axle that a kind of pure square-wave motor of permanent magnetism drives |
-
2010
- 2010-04-19 CN CN2010201639217U patent/CN201646386U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785548A (en) * | 2012-08-06 | 2012-11-21 | 苏州朗格电动车有限公司 | Rear suspension system of electric vehicle |
| CN106080222A (en) * | 2016-05-23 | 2016-11-09 | 刘霄 | A kind of pure power-actuated electric automobile of tandem |
| CN106080222B (en) * | 2016-05-23 | 2018-12-21 | 中山市小象新能源有限公司 | A kind of electric car that tandem is driven by pure electric power |
| CN106915233A (en) * | 2017-04-18 | 2017-07-04 | 沈阳永磁电机制造有限公司 | The mechanical difference device drive axle that a kind of pure square-wave motor of permanent magnetism drives |
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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: SHANDONG XINDAYANG ELECTRIC BIKE CO., LTD. Free format text: FORMER OWNER: BAO WENGUANG Effective date: 20150422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 318020 TAIZHOU, ZHEJIANG PROVINCE TO: 276000 LINYI, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150422 Address after: 276000 AUCMA Avenue, Yinan County, Shandong, Linyi Patentee after: SHANDONG XINDAYANG ELECTRIC BIKE CO., LTD. Address before: 318020, 8 new Arch Road, Huangyan Economic Development Zone, Taizhou, Zhejiang Patentee before: Bao Wenguang |
|
| CP03 | Change of name, title or address |
Address after: 276300 No. 88 Kaiyuan Road, Yinan County Economic Development Zone, Linyi, Shandong Patentee after: Shandong Zhi bean Electric Vehicle Co., Ltd. Address before: 276000 Linyi City, Shandong Province, Yinan County Ao Kema Avenue West Head Patentee before: SHANDONG XINDAYANG ELECTRIC BIKE CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |