CN108407586B - Transverse coaxial differential-reduction integrated electric bridge - Google Patents
Transverse coaxial differential-reduction integrated electric bridge Download PDFInfo
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- CN108407586B CN108407586B CN201810127018.6A CN201810127018A CN108407586B CN 108407586 B CN108407586 B CN 108407586B CN 201810127018 A CN201810127018 A CN 201810127018A CN 108407586 B CN108407586 B CN 108407586B
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- motor
- differential
- planetary gear
- reducer
- motor rotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Retarders (AREA)
- Motor Power Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a transverse coaxial difference-reduction integrated electric axle, which comprises a body, wherein the body comprises a motor, a planetary gear reducer and a cylindrical gear differential mechanism, an outer shell A is arranged outside the motor, a motor stator is arranged inside the outer shell A, a motor rotor A and a motor rotor B are arranged on the inner side of the motor stator, permanent magnets are adhered to the outer sides of the motor rotor A and the motor rotor B, the cylindrical gear differential mechanism is arranged inside the motor, a driven wheel A and a driven wheel B are arranged in the middle of the cylindrical gear differential mechanism, the motor, the differential mechanism and the reducer are highly integrated on one shaft by arranging the cylindrical gear differential mechanism in a rotor of a permanent magnet synchronous motor, the volume of a transmission link of an electric automobile is reduced, the power density is improved, and the differential mechanism is arranged at the high-speed end of the reducer, the stress is small, and the method has good economic and social benefits and is suitable for popularization and use.
Description
The technical field is as follows:
the invention relates to the technical field of electric automobiles, in particular to a transverse coaxial differential-reduction integrated electric axle.
Background art:
the traditional electric automobile mostly adopts the scheme of a motor-reducer-bevel gear differential, the motor and the differential are not on the same axis, the occupied size is larger, the differential is on the low-speed end, the stress is larger, and the large gear is required to provide enough strength, so that the transverse coaxial difference-reduction integrated electric axle is provided.
The invention content is as follows:
the invention aims to solve the problems in the prior art, and provides a transverse coaxial differential-reduction integrated electric axle, which solves the problems in the prior art, and the cylindrical gear differential is arranged in a rotor of a permanent magnet synchronous motor, so that the motor, the differential and a speed reducer are highly integrated on one shaft, the volume of a transmission link of an electric automobile is reduced, the power density is improved, and meanwhile, the differential is arranged at the high-speed end of the speed reducer, has small stress, good economic benefit and social benefit, and is suitable for popularization and use.
In order to solve the above problems, the present invention provides a technical solution:
a transverse coaxial differential-reduction integrated electric axle comprises a body, wherein the body comprises a motor, a planetary gear reducer and a cylindrical gear differential mechanism, an outer shell A is arranged outside the motor, a motor stator is arranged inside the outer shell A, a motor rotor A and a motor rotor B are arranged on the inner side of the motor stator, permanent magnets are adhered to the outer sides of the motor rotor A and the motor rotor B, the cylindrical gear differential is installed inside the motor, a driven wheel A and a driven wheel B are arranged in the middle of the cylindrical gear differential, the top of the driven wheel A is connected with a differential planet wheel A in a meshing way, the top of the driven wheel B is connected with a differential planet wheel B in a meshed mode, the two sides of the differential planet wheel A and the differential planet wheel B are fixedly connected with the motor rotor A and the motor rotor B through shaft sleeves, and a speed reducer inner gear is arranged inside the planetary gear speed reducer.
Preferably, the planetary gear speed reducer is provided with two, two the planetary gear speed reducer includes planet wheel, planet wheel output shaft and reduction gear internal gear respectively, the planet wheel both sides with follow driving wheel A with follow driving wheel B meshing, the planet wheel meshes with the reduction gear internal gear, the planet wheel output shaft pass through the kingpin with the planet wheel cooperation is connected, just planet wheel week has the several, reduction gear planet carrier and output disc are installed respectively to planet wheel output shaft both sides, the planet wheel output shaft with reduction gear planet carrier with output disc interference fit.
Preferably, a water jacket is arranged between the motor stator and the outer shell a, and the water jacket is fixedly connected with the motor stator through screws.
Preferably, a body shell B and a body shell C are arranged on two sides of the planetary gear reducer, the body shell B is fixedly connected with the side end of the outer body shell A through a bolt, the body shell C is fixedly connected with the body shell B through a bolt, and the internal gear of the planetary gear reducer is fixedly mounted on the two body shells C through screws.
Preferably, the motor rotor a and the motor rotor B are connected by screws.
Preferably, the outer shell a is an interference fit with the water jacket.
The invention has the beneficial effects that:
the cylindrical gear differential mechanism is arranged in the rotor of the permanent magnet synchronous motor, the differential mechanism and the speed reducer are highly integrated on one shaft, the volume of a transmission link of the electric automobile is reduced, the power density is improved, and meanwhile, the differential mechanism is arranged at the high-speed end of the speed reducer, is small in stress, has good economic and social benefits, and is suitable for popularization and use.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a transverse coaxial differential-reduction integrated electric bridge according to the present invention;
FIG. 2 is a cross-sectional view of a planetary gear reducer of a transverse coaxial differential-reduction integral electric axle of the present invention;
FIG. 3 is a cross-sectional view of a spur gear differential of a transverse coaxial differential-reduction integral electric axle of the present invention.
In the figure; 1-body, 2-motor, 3-planetary gear reducer, 4-cylindrical gear differential, 5-outer body shell A, 6-motor stator, 7-water jacket, 8-motor rotor A, 9-motor rotor B, 10-differential planetary gear A, 11-differential planetary gear B, 12-body shell B, 13-body shell C, 14-reducer planet carrier, 15-output disc, 16-reducer internal gear, 17-planetary gear output shaft, 18-roller needle, 19-permanent magnet, 20-driven wheel A, 21-driven wheel B and 22-shaft sleeve.
The specific implementation mode is as follows:
as shown in fig. 1 to 3, the following technical solutions are adopted in the present embodiment: a transverse coaxial differential-reduction integrated electric axle comprises an axle body 1, wherein the axle body 1 comprises a motor 2, a planetary gear reducer 3 and a cylindrical gear differential 4, an outer shell A5 is arranged outside the motor 2, a motor stator 6 is arranged inside the outer shell A5, a motor rotor A8 and a motor rotor B9 are arranged inside the motor stator 6, a permanent magnet 19 is bonded outside the motor rotor A8 and the motor rotor B9, the cylindrical gear differential 4 is arranged inside the motor 2, a driven wheel A20 and a driven wheel B21 are arranged in the middle of the cylindrical gear differential 4, a differential planet wheel A10 is meshed and connected with the top of the driven wheel A20, a differential planet wheel B11 is meshed and connected with the top of the driven wheel B21, two sides of the differential planet wheel A10 and the differential planet wheel B11 are fixedly connected with the motor rotor A8 and the motor rotor B9 through shaft sleeves 22, the planetary gear reducer 3 is internally provided with a reducer ring gear 16.
The planetary gear speed reducer 3 is provided with two, two the planetary gear speed reducer 3 includes planet wheel, planet wheel output shaft 17 and reduction gear internal gear 16 respectively, the planet wheel both sides with follow driving wheel A20 with follow driving wheel B21 meshing, the planet wheel meshes with reduction gear internal gear 16, planet wheel output shaft 17 through kingpin 18 with the planet wheel cooperation is connected, just planet wheel a week has the several, reduction gear planet carrier 14 and output dish 15 are installed respectively to planet wheel output shaft 17 both sides, planet wheel output shaft 17 with reduction gear planet carrier 14 with output dish 15 interference fit.
A water jacket 7 is arranged between the motor stator 6 and the outer shell A5, and the water jacket 7 is fixedly connected with the motor stator 6 through screws.
The two sides of the planetary gear reducer 3 are provided with a body shell B12 and a body shell C13, the body shell B12 is fixedly connected with the side end of the outer body shell A5 through bolts, the body shell C13 is fixedly connected with the body shell B12 through bolts, and the reducer internal gear 16 is fixedly mounted on the two body shells C13 through screws.
Wherein the motor rotor A8 and the motor rotor B9 are connected through screws.
Wherein the outer body case a5 is interference fitted with the water jacket 7.
Specifically, the method comprises the following steps: a transverse coaxial differential-reduction integrated electric axle is disclosed, when in use, a motor 2 is started, a motor rotor A8 and a motor rotor B9 in the motor 2 rotate, the motor rotor A8 and the motor rotor B9 rotate to drive a differential planet wheel A10 and a differential planet wheel B11 in a cylindrical gear differential 4 to revolve, the differential planet wheel A10 and the differential planet wheel B11 revolve to drive a driven wheel A20 and a driven wheel B21 to rotate, the driven wheel A20 and the driven wheel B21 rotate and simultaneously drive a reducer planet wheel through a reducer internal gear 16 to revolve, and further drive an output disc 15 to rotate and output through a planet wheel output shaft 17, when a vehicle turns, the differential planet wheel A10 and the differential planet wheel B11 rotate while revolving, so that the rotating speeds output by the driven wheel A20 and a second driven wheel B21 are different.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (1)
1. The utility model provides a horizontal coaxial difference subtracts integrative electric bridge, includes body (1), its characterized in that: the body (1) comprises a motor (2), a planetary gear reducer (3) and a cylindrical gear differential (4), an outer shell A (5) is mounted outside the motor (2), a motor stator (6) is mounted inside the outer shell A (5), a motor rotor A (8) and a motor rotor B (9) are mounted on the inner side of the motor stator (6), permanent magnets (19) are adhered to the outer sides of the motor rotor A (8) and the motor rotor B (9), the cylindrical gear differential (4) is mounted inside the motor (2), a driven wheel A (20) and a driven wheel B (21) are mounted in the middle of the cylindrical gear differential (4), a differential planetary wheel A (10) is connected to the top of the driven wheel A (20) in a meshing mode, a differential planetary wheel B (11) is connected to the top of the driven wheel B (21) in a meshing mode, two sides of the differential planet wheel A (10) and two sides of the differential planet wheel B (11) are fixedly connected with the motor rotor A (8) and the motor rotor B (9) through shaft sleeves (22), and a speed reducer inner gear (16) is arranged inside the planetary gear speed reducer (3);
the two planetary gear reducers (3) are respectively provided with a planetary gear, a planetary gear output shaft (17) and a reducer internal gear (16), the two sides of the planetary gear are meshed with the driven wheel A (20) and the driven wheel B (21), the planetary gear is meshed with the reducer internal gear (16), the planetary gear output shaft (17) is connected with the planetary gear in a matched mode through a roller pin (18), a plurality of planetary gears are arranged around the circumference, the two sides of the planetary gear output shaft (17) are respectively provided with a reducer planet carrier (14) and an output disc (15), and the planetary gear output shaft (17) is in interference fit with the reducer planet carrier (14) and the output disc (15);
a water jacket (7) is arranged between the motor stator (6) and the outer shell A (5), and the water jacket (7) is fixedly connected with the motor stator (6) through screws;
a body shell B (12) and a body shell C (13) are arranged on two sides of the planetary gear reducer (3), the body shell B (12) is fixedly connected with the side end of the outer body shell A (5) through a bolt, the body shell C (13) is fixedly connected with the body shell B (12) through a bolt, and a reducer inner gear (16) is fixedly installed on the two body shells C (13) through screws;
the motor rotor A (8) is connected with the motor rotor B (9) through a screw;
the outer shell A (5) is in interference fit with the water jacket (7).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127018.6A CN108407586B (en) | 2018-02-08 | 2018-02-08 | Transverse coaxial differential-reduction integrated electric bridge |
| PCT/CN2019/074731 WO2019154402A1 (en) | 2018-02-08 | 2019-02-07 | Transverse coaxial differential-reducer integrated electric bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810127018.6A CN108407586B (en) | 2018-02-08 | 2018-02-08 | Transverse coaxial differential-reduction integrated electric bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108407586A CN108407586A (en) | 2018-08-17 |
| CN108407586B true CN108407586B (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810127018.6A Active CN108407586B (en) | 2018-02-08 | 2018-02-08 | Transverse coaxial differential-reduction integrated electric bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108407586B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154402A1 (en) * | 2018-02-08 | 2019-08-15 | 西安六环传动新能源科技有限公司 | Transverse coaxial differential-reducer integrated electric bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587389A1 (en) * | 1992-09-11 | 1994-03-16 | Toyota Jidosha Kabushiki Kaisha | Differential gear with abutment member between the output shafts |
| CN101707412A (en) * | 2009-11-13 | 2010-05-12 | 北京科技大学 | Driving motor with function of differential speed output |
| CN105186770A (en) * | 2015-08-01 | 2015-12-23 | 谷伟 | Differential dual-output motor |
| CN205523681U (en) * | 2016-01-22 | 2016-08-31 | 吉林大学 | Electric drive axle based on single file star row |
| CN206487847U (en) * | 2016-08-26 | 2017-09-12 | 东风德纳车桥有限公司 | A kind of motor differential assembly |
-
2018
- 2018-02-08 CN CN201810127018.6A patent/CN108407586B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587389A1 (en) * | 1992-09-11 | 1994-03-16 | Toyota Jidosha Kabushiki Kaisha | Differential gear with abutment member between the output shafts |
| CN101707412A (en) * | 2009-11-13 | 2010-05-12 | 北京科技大学 | Driving motor with function of differential speed output |
| CN105186770A (en) * | 2015-08-01 | 2015-12-23 | 谷伟 | Differential dual-output motor |
| CN205523681U (en) * | 2016-01-22 | 2016-08-31 | 吉林大学 | Electric drive axle based on single file star row |
| CN206487847U (en) * | 2016-08-26 | 2017-09-12 | 东风德纳车桥有限公司 | A kind of motor differential assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108407586A (en) | 2018-08-17 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230216 Address after: 721006 75 Qing Jiang Road, Weibin District, Shaanxi, Baoji Patentee after: Shaanxi Liuhuan Intelligent Equipment Technology Co.,Ltd. Address before: 712000 room 703, 7 / F, building 14, West Yungu, Fengxi new town, Xixian New District, Xi'an City, Shaanxi Province Patentee before: XI'AN SIX RING DRIVE NEW ENERGY TECHNOLOGY Co.,Ltd. |
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