CN110654225A - Wheel driving system and vehicle - Google Patents
Wheel driving system and vehicle Download PDFInfo
- Publication number
- CN110654225A CN110654225A CN201810714767.9A CN201810714767A CN110654225A CN 110654225 A CN110654225 A CN 110654225A CN 201810714767 A CN201810714767 A CN 201810714767A CN 110654225 A CN110654225 A CN 110654225A
- Authority
- CN
- China
- Prior art keywords
- wheel
- gear
- planet
- ring
- planet carrier
- 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.)
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Classifications
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- 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
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0053—Disposition of motor in, or adjacent to, traction wheel the motor moving relative to the vehicle body and to the wheel axle
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Retarders (AREA)
Abstract
The invention discloses a wheel driving system and a vehicle, wherein the wheel driving system comprises: the gear edge motor, first planetary gear mechanism and second planetary gear mechanism, first planetary gear mechanism includes: the first sun gear, the first planet wheel, the first planet carrier and the first gear ring; the second planetary gear mechanism includes: the second planet wheel is arranged on the second planet carrier and is meshed between the second sun wheel and the second gear ring, the second gear ring is connected with the first planet carrier, the second sun wheel is fixed, and the second planet carrier is connected with a hub of the wheel and transmits power to the hub. Therefore, the structure of the wheel driving system can be more compact through the matching of the wheel motor, the first planetary gear mechanism and the second planetary gear mechanism, the width of a vehicle channel can be widened, the structure of the wheel driving system can be simpler, and the transmission efficiency of the wheel driving system can be improved.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a wheel-side driving system and a vehicle with the same.
Background
For a passenger car driven by a traditional central engine or a motor, a rear-section bottom plate generally adopts a stepping type high-low plate, and a full-channel low-floor type structure cannot be realized.
The main reducer of the wheel-side drive axle in the prior art uses two-set split type two-stage reduction transmission gear pair, so that the axial dimension of the reducer is large, the vehicle rear floor can only adopt a step type high floor, the full-channel low floor type structure is made reluctantly, the channel width is also very narrow, the trafficability characteristic is influenced, and some overseas national regulations have certain requirements on the channel width of the full-channel low floor type structure, and the overseas operation of the domestic passenger car brand popularization is also influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a wheel-side drive system which is more compact and facilitates widening of the vehicle tunnel width.
The invention further provides a vehicle.
The wheel-side drive system according to the present invention includes: a wheel edge motor, a first planetary gear mechanism and a second planetary gear mechanism, the first planetary gear mechanism comprising: the first planet wheel is arranged on the first planet carrier and meshed between the first sun wheel and the first gear ring, the first sun wheel is connected with the wheel edge motor, and the first gear ring is fixed; the second planetary gear mechanism includes: the second planet wheel is arranged on the second planet carrier, the second planet wheel is meshed between the second sun wheel and the second gear ring, the second gear ring is connected with the first planet carrier, the second sun wheel is fixed, and the second planet carrier is connected with a hub of a wheel and transmits power to the hub.
According to the wheel-side driving system, the wheel-side motor, the first planetary gear mechanism and the second planetary gear mechanism are matched, so that the structure of the wheel-side driving system is more compact, the width of a vehicle passage is widened, the structure of the wheel-side driving system is simpler, and the transmission efficiency of the wheel-side driving system can be improved.
In some embodiments of the present invention, the wheel-side driving system further includes an output shaft, the first planet carrier and the second ring gear are connected through the output shaft, and the second sun gear is sleeved on the output shaft.
In some embodiments of the present invention, the first planetary gear mechanism includes: the first gear ring is fixedly connected with the first shell.
In some embodiments of the present invention, the first ring gear and the first housing are integrated into one body.
In some embodiments of the invention, a ring of internal teeth is formed on the first housing inner wall, the internal teeth forming the first ring gear.
In some embodiments of the invention, the second sun gear and the first housing are fixedly connected by a fastener.
In some embodiments of the invention, the second planet carrier and the hub are integrated into one piece.
In some embodiments of the present invention, the wheel-side driving system further comprises: a brake, the brake comprising: the brake disc is fixed with the hub, and the brake air chamber is connected with the brake calipers; the speed reducer includes: a first housing, the brake caliper being fixed with the first housing.
In some embodiments of the present invention, the power of the wheel-side motor sequentially passes through the first sun gear, the first planet carrier, the second ring gear, the second planet gear, and the second planet carrier, and then outputs the power to the hub of the wheel.
According to the invention, the vehicle comprises the wheel side driving system.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a wheel-side drive system according to an embodiment of the present invention.
Reference numerals:
the wheel-side drive system 10;
a wheel-side motor 1;
a first planetary gear mechanism 2; a first sun gear 21; a first planet wheel 22; a first carrier 23; the first ring gear 24; a first housing 25;
a second planetary gear mechanism 3; the second sun gear 31; the second planet wheels 32; a second carrier 33; the second ring gear 34;
an output shaft 4; a brake 5; an input shaft 6;
a wheel 20; a hub 30.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A wheel-side drive system 10 according to an embodiment of the present invention is described below with reference to fig. 1.
As shown in fig. 1, a wheel-side drive system 10 according to an embodiment of the present invention includes: a wheel edge motor 1, a first planetary gear mechanism 2 and a second planetary gear mechanism 3. The first planetary gear mechanism 2 may include: the planetary gear set comprises a first sun gear 21, a first planet gear 22, a first planet carrier 23 and a first gear ring 24, wherein the first planet gear 22 can be arranged on the first planet carrier 23, the first planet gear 22 can be freely sleeved on the first planet carrier 23 through a bearing, the first planet gear 22 can freely rotate relative to the first planet carrier 23, the first planet gear 22 is meshed between the first sun gear 21 and the first gear ring 24, the first sun gear 21 is connected with the hub motor 1, and the first gear ring 24 is fixed.
The second planetary gear mechanism 3 may include: a second sun gear 31, a second planet gear 32, a second planet carrier 33 and a second ring gear 34, the second planet gear 32 may be arranged on the second planet carrier 33, the second planet gear 32 may be freely rotatable relative to the second planet carrier 33 by means of a bearing, the second planet gear 32 is engaged between the second sun gear 31 and the second ring gear 34, the second planet gear 32 is rotatable around the second sun gear 31, the second ring gear 34 is connected to the first planet carrier 23, the second sun gear 31 is fixed, the second planet carrier 33 is connected to the hub 30 of the wheel and transmits power to the hub 30 of the wheel 20.
When the wheel-side driving system 10 works, power is transmitted to the first sun gear 21 through the wheel-side motor 1, the first sun gear 21 rotates, then the first sun gear 21 drives the first planet gear 22 to rotate, then the first planet gear 22 drives the first planet carrier 23 to rotate, then the first planet carrier 23 drives the second gear ring 34 to rotate, then the second gear ring 34 drives the second planet gear 32 to rotate, then the second planet gear 32 drives the second planet carrier 33 to rotate, finally the second planet carrier 33 transmits the power to the hub 30 of the wheel 20, and the whole vehicle is driven to move forward, so that power loss can be reduced, and the transmission efficiency of the wheel-side driving system 10 can be improved.
The first planetary gear mechanism 2 and the second planetary gear mechanism 3 are compact in structure in the axial direction, the width of a drive axle housing is widened, the width of a channel as large as possible in a vehicle can be enabled, and the width of the channel of the vehicle can be widened. Moreover, the wheel driving system 10 is simpler in structure and can be conveniently produced, so that the production efficiency can be improved.
Therefore, the wheel edge motor 1, the first planetary gear mechanism 2 and the second planetary gear mechanism 3 are matched, so that the structure of the wheel edge driving system 10 is more compact, the width of a vehicle passage is favorably widened, the structure of the wheel edge driving system 10 is simpler, and the transmission efficiency of the wheel edge driving system 10 can be improved.
In some examples of the present invention, as shown in fig. 1, the wheel-side driving system 10 may further include an output shaft 4, the first carrier 23 and the second ring gear 34 may be connected through the output shaft 4, and the second sun gear 31 may be sleeved on the output shaft 4, wherein the first carrier 23 and the output shaft 4 may be rigidly connected together, and the output shaft 4 and the second ring gear 34 may also be rigidly connected together, so that the first carrier 23 and the output shaft 4, and the output shaft 4 and the second ring gear 34 may be reliably assembled together, and the first carrier 23 and the output shaft 4, and the output shaft 4 and the second ring gear 34 may be separated, so that the operational reliability of the wheel-side driving system 10 may be ensured.
In some examples of the present invention, as shown in fig. 1, the first planetary gear mechanism 2 may include: the first housing 25 and the first ring gear 24 are fixedly connected with the first housing 25. In this case, after the first ring gear 24 is fixed to the first housing 25, so that the power of the first planetary gear mechanism 2 is transmitted to the second planetary gear mechanism 3 through the first ring gear 24, thereby ensuring the output of the power to the second planetary gear mechanism 3.
In some examples of the present invention, the first ring gear 24 and the first housing 25 may be integrated, so that the first ring gear 24 and the first housing 25 can be integrated, the structure of the first planetary gear mechanism 2 can be made simpler, and the transmission efficiency can be made higher, and the entire structure of the first ring gear 24 and the first housing 25 can also be made more compact, the volume of the first planetary gear mechanism 2 can be reduced, the process of separately providing the first ring gear 24 can be omitted, the number of parts constituting the first planetary gear mechanism 2 can be reduced, and the structure of the first planetary gear mechanism 2 can be made simpler, and the structure of the wheel-side drive system 10 can be simplified.
In some examples of the present invention, a ring of internal teeth may be formed on the inner wall of the first housing 25, and the internal teeth may form the first ring gear 24, so that the overall structure of the first ring gear 24 and the first housing 25 can be further made more compact, and the volume of the first planetary gear mechanism 2 can be further reduced.
Further, the first housing 25 and the first ring gear 24 of the first planetary gear mechanism 2 may be integrated, and an inner tooth may be formed on the inner wall of the first housing 25, and an inner tooth may constitute the first ring gear 24 of the first planetary gear mechanism 2, and the first ring gear 24 and the first planetary gears 22 are engaged with each other, so that the process of separately providing the first ring gear 24 can be omitted, the number of parts constituting the first planetary gear mechanism 2 can be reduced, and the structure of the wheel edge drive system 10 can be further simplified. In addition, the problem that power is interrupted due to unstable connection caused by the mode that the gear ring is connected with the first shell 25 through bolts can be effectively solved by adopting the mode that the inner teeth are integrated on the first shell 25, the risk of damage to the first planetary gear mechanism 2 is reduced, the reliability of the wheel-side driving system 10 is improved, and the service life is prolonged. From whole angle, the mode integrated level that first ring gear 24 is integrated in first casing 25 is high, can also effectually reduce spare part occupation space, improves space utilization, makes the spare part overall arrangement in first casing 25 more nimble. Finally, the first shell 25 integrated with the first gear ring 24 can effectively improve production and assembly efficiency and reduce labor cost.
In some examples of the present invention, the second sun gear 31 and the first housing 25 may be fixedly connected together by a fastener, and it should be noted that after the second sun gear 31 is fixed on the first housing 25, the second sun gear 31 cannot rotate, wherein the fastening of the fastener is good, so that the second sun gear 31 can be stably assembled on the first housing 25, and the second sun gear 31 can be prevented from falling off the first housing 25.
In some examples of the present invention, the second carrier 33 and the hub 30 may be integrated, which reduces the number of parts constituting the second planetary gear mechanism 3, so that the structure of the second planetary gear mechanism 3 may be made simpler, and the structure of the wheel-side drive system 10 may be further simplified. Meanwhile, power can be directly output to the wheel 20 through the second planet carrier 33, so that the wheel hub 30 can be driven to rotate, and the transmission efficiency of the wheel-side driving system 10 can be further improved.
In some examples of the invention, the wheel-side drive system 10 may further include: the brake 5, the brake 5 may include: brake disc, brake caliper and brake chamber, the brake disc can be in the same place through brake disc fixing bolt and wheel hub 30 fixed connection, and the brake disc can rotate with the rotational speed along with wheel hub 30, and brake chamber links to each other with brake caliper, and the reduction gear can include: and the first shell 25 is fixedly connected with the brake caliper and the first shell 25.
In some examples of the invention, as shown in fig. 1, the wheel-side drive system 10 may further include: the input shaft 6 and the wheel-side motor 1 are connected with the input shaft 6, power is input through the input shaft 6, and the first sun gear 21 and the input shaft 6 can be rigidly connected together, so that the first sun can rotate with the input shaft 6 at the same rotating speed.
In some examples of the present invention, as shown in fig. 1, the power of the wheel-side motor 1 may sequentially pass through the input shaft 6, the first sun gear 21, the first planet gear 22, the first planet carrier 23, the output shaft 4, the second ring gear 34, the second planet gear 32, and the second planet carrier 33, and then output the power to the hub 30 of the wheel 20, so as to achieve the purpose of driving the whole vehicle to move forward.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An edge wheel drive system, comprising:
a wheel-side motor;
a first planetary gear mechanism, the first planetary gear mechanism comprising: the first planet wheel is arranged on the first planet carrier and meshed between the first sun wheel and the first gear ring, the first sun wheel is connected with the wheel edge motor, and the first gear ring is fixed;
a second planetary gear mechanism, the second planetary gear mechanism comprising: the second planet wheel is arranged on the second planet carrier, the second planet wheel is meshed between the second sun wheel and the second gear ring, the second gear ring is connected with the first planet carrier, the second sun wheel is fixed, and the second planet carrier is connected with a hub of a wheel and transmits power to the hub.
2. The wheel edge drive system according to claim 1, further comprising an output shaft, wherein the first carrier and the second ring gear are connected by the output shaft, and the second sun gear is fitted over the output shaft.
3. The wheel edge drive system according to claim 1, wherein the first planetary gear mechanism includes: the first gear ring is fixedly connected with the first shell.
4. The wheel edge drive system of claim 3, wherein the first ring gear and the first housing are integrated.
5. The wheel edge drive system according to claim 4, wherein a circle of internal teeth is formed on the first housing inner wall, the internal teeth forming the first ring gear.
6. The wheel edge drive system of claim 3, wherein the second sun gear and the first housing are fixedly connected by a fastener.
7. The wheel edge drive system of claim 1, wherein the second planet carrier and the hub are integrated.
8. The wheel edge drive system according to claim 1, further comprising: a brake, the brake comprising: the brake disc is fixed with the hub, and the brake air chamber is connected with the brake calipers;
the speed reducer includes: a first housing, the brake caliper being fixed with the first housing.
9. The wheel-edge driving system according to claim 1, wherein power of the wheel-edge motor sequentially passes through the first sun gear, the first planet carrier, the second ring gear, the second planet gear, and the second planet carrier and then outputs power to a hub of a wheel.
10. A vehicle characterized by comprising the wheel-side drive system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810714767.9A CN110654225A (en) | 2018-06-29 | 2018-06-29 | Wheel driving system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810714767.9A CN110654225A (en) | 2018-06-29 | 2018-06-29 | Wheel driving system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110654225A true CN110654225A (en) | 2020-01-07 |
Family
ID=69027797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810714767.9A Withdrawn CN110654225A (en) | 2018-06-29 | 2018-06-29 | Wheel driving system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110654225A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549972U (en) * | 2009-09-29 | 2010-08-11 | 比亚迪股份有限公司 | Hub motor system and vehicle including same |
| CN201753020U (en) * | 2010-06-30 | 2011-03-02 | 比亚迪股份有限公司 | Wheel side driving system and vehicle including same |
| CN102826003A (en) * | 2011-06-15 | 2012-12-19 | 现代摩比斯株式会社 | Wheel drive unit |
| CN203186075U (en) * | 2012-12-26 | 2013-09-11 | 北京智行鸿远汽车技术有限公司 | Wheel motor drive axle for electric vehicle |
| CN106335356A (en) * | 2016-09-22 | 2017-01-18 | 中国北方车辆研究所 | Hub motor drive device with speed-reducing mechanism |
-
2018
- 2018-06-29 CN CN201810714767.9A patent/CN110654225A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549972U (en) * | 2009-09-29 | 2010-08-11 | 比亚迪股份有限公司 | Hub motor system and vehicle including same |
| CN201753020U (en) * | 2010-06-30 | 2011-03-02 | 比亚迪股份有限公司 | Wheel side driving system and vehicle including same |
| CN102826003A (en) * | 2011-06-15 | 2012-12-19 | 现代摩比斯株式会社 | Wheel drive unit |
| CN203186075U (en) * | 2012-12-26 | 2013-09-11 | 北京智行鸿远汽车技术有限公司 | Wheel motor drive axle for electric vehicle |
| CN106335356A (en) * | 2016-09-22 | 2017-01-18 | 中国北方车辆研究所 | Hub motor drive device with speed-reducing mechanism |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200107 |
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| WW01 | Invention patent application withdrawn after publication |