CN115972818A - Drive assembly and vehicle - Google Patents
Drive assembly and vehicle Download PDFInfo
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- CN115972818A CN115972818A CN202310142749.9A CN202310142749A CN115972818A CN 115972818 A CN115972818 A CN 115972818A CN 202310142749 A CN202310142749 A CN 202310142749A CN 115972818 A CN115972818 A CN 115972818A
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- motor
- half shaft
- brake disc
- driving
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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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Abstract
The invention discloses a driving assembly and a vehicle, which relate to the technical field of electric automobiles and comprise an annular brake disc, a half shaft shell and at least one driving motor, wherein the half shaft shell is fixedly connected to a vehicle main body; the driving assembly and the vehicle disclosed by the invention can ensure the torque requirement of vehicle running, and can effectively save the manufacturing, using and maintaining costs of the vehicle.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a driving assembly and a vehicle.
Background
Climate change, energy and environmental problems are long-term problems facing human society, and reduction of greenhouse gas emission in the traffic field is an important means for solving global climate change. The electric automobile is a vehicle which takes a vehicle-mounted battery as a power source and drives wheels through a motor to run, meets various requirements of road traffic and safety regulations, and has a smaller influence on the environment compared with the traditional automobile, so that the electric automobile has a wide prospect.
For example, in the conventional electric vehicle drive such as the new energy drive axle assembly disclosed in chinese patent CN203472532U, a motor is mounted on a drive axle and is in transmission connection with a half shaft, and the half shaft is driven by the motor to drive wheels so as to drive a vehicle to run. And because the radius of the half shaft is smaller, the torque requirement of the wheel rotation can be met only by outputting larger driving force to the half shaft by the motor, and particularly when the vehicle accelerates or climbs a slope, the larger driving force is output to the half shaft by the motor, so that the performance requirement on the motor and the half shaft is higher, more battery electricity is consumed, the battery endurance mileage and the battery service life are negatively influenced, and the manufacturing, using and maintaining cost of the vehicle is increased.
Therefore, how to save the manufacturing, using and maintaining costs of the vehicle becomes a technical problem which needs to be solved urgently on the premise of ensuring the driving torque requirement of the vehicle.
Disclosure of Invention
The invention aims to provide a driving assembly and a vehicle, which are used for solving the problems in the prior art, ensuring the torque requirement of the vehicle in running and effectively saving the manufacturing, using and maintaining costs of the vehicle.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a driving assembly, which comprises an annular brake disc, half shafts, half shaft shells and at least one driving motor, wherein the half shaft shells are fixedly connected to a vehicle body, each driving motor comprises a motor shell and a motor shaft, each motor shell is fixedly arranged on the outer wall of the half shaft shell, one end of each motor shaft is used for extending out of each motor shell, a driving gear is fixedly sleeved on a part, extending out of each motor shell, of each motor shaft, one end of each half shaft is used for extending out of the half shaft shell, the annular brake disc is arranged between a wheel hub and each driving motor and is fixedly connected with the wheel hub, a plurality of teeth are arranged on the inner wall of the annular brake disc, spaces are reserved between the teeth on the inner wall of the annular brake disc and the half shafts, and the teeth on the inner wall of the annular brake disc can be meshed with the driving gears; the motor shaft rotates to drive the annular brake disc to rotate; the axes of the annular brake disc, the wheel hub and the half shaft are collinear, and the axis of each motor shaft is parallel to the axis of the annular brake disc.
Preferably, the axis of each motor shaft is symmetrical with respect to the axis of the annular brake disc.
Preferably, the number of the driving motors is three.
Preferably, the axle housing comprises an axle housing body and a motor mounting plate, the motor mounting plate is fixedly sleeved on the outer wall of the axle housing body, and one end of the axle shaft is used for extending out of the axle housing body and is fixedly connected with the wheel hub; each motor casing all is used for fixedly locating on the motor mounting panel.
Preferably, at least one mounting groove is formed in the side wall, close to the hub, of the motor mounting plate, the number of the mounting grooves is equal to that of the driving motors, and one end, far away from the hub, of each motor housing is used for extending into each mounting groove and being fixed in each mounting groove.
Preferably, the control device further comprises a control module, the control module is used for being in communication connection with each driving motor, and the control module can control each driving motor to operate.
The invention also provides a vehicle comprising a vehicle body and a drive assembly as described in any of the above.
Preferably, the vehicle is an electric automobile.
Compared with the prior art, the invention has the following technical effects:
according to the driving assembly and the vehicle provided by the invention, the inner wall of the annular brake disc is provided with the plurality of teeth, the driving gear on the motor shaft is meshed with the teeth on the inner wall of the annular brake disc, the driving gear is driven to rotate by utilizing the rotation of the motor shaft, and then the annular brake disc and the hub are driven to rotate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an internal structure of a driving assembly according to the present invention;
FIG. 2 is a general schematic view of a drive assembly provided by the present invention;
fig. 3 is an exploded view of the drive assembly provided in fig. 2.
In the figure: 1-wheel hub, 2-brake caliper, 3-annular brake disc, 4-driving gear, 5-driving motor, 6-motor mounting plate, 7-half shaft and 8-half shaft shell body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a driving assembly and a vehicle, which are used for solving the problems in the prior art, ensuring the torque requirement of vehicle running and effectively saving the manufacturing, using and maintaining costs of the vehicle.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1-3, the present embodiment provides a driving assembly, which includes an annular brake disk 3, a half shaft 7, a half shaft housing and at least one driving motor 5, wherein the half shaft housing is used for being fixedly connected to a vehicle body, each driving motor 5 includes a motor housing and a motor shaft, each motor housing is used for being fixedly arranged on an outer wall of the half shaft housing, one end of each motor shaft is used for extending out of each motor housing, a driving gear 4 is fixedly sleeved on a portion of each motor shaft extending out of each motor housing, one end of the half shaft 7 is used for extending out of the half shaft housing and being connected with a hub 1, an annular brake disk 3 is used for being arranged between the hub 1 and each driving motor 5, the annular brake disk 3 is used for being fixedly connected with the hub 1, a plurality of teeth are arranged on an inner wall of the annular brake disk 3, a space is left between the teeth on the inner wall of the annular brake disk 3 and the half shaft 7, and the teeth on the inner wall of the annular brake disk 3 can be meshed with each driving gear 4; the motor shaft rotates to drive the annular brake disc 3 to rotate; the axes of the annular brake disc 3, the hub 1 and the half-shafts 7 are collinear, and the axis of each motor shaft is parallel to the axis of the annular brake disc 3.
The driving assembly provided by the embodiment is particularly suitable for being used as a main driving assembly of an electric automobile to provide driving force for the running of the electric automobile, but not limited to being used as a main driving assembly of the electric automobile, and also can be used as an auxiliary power assembly of a traditional electric automobile, a fuel automobile or a hybrid automobile to provide auxiliary driving force for the automobile under severe working conditions such as starting, accelerating and climbing, a plurality of teeth are arranged on the inner wall of the annular brake disc 3, the driving gear 4 on the motor shaft is meshed with the teeth on the inner wall of the annular brake disc 3, the driving gear 4 is driven to rotate by the rotation of the motor shaft, and then the annular brake disc 3 and the hub 1 are driven to rotate, compared with the prior art, the motor is driven to drive the half shaft 7 to rotate, because a space is left between the teeth on the inner wall of the annular brake disc 3 and the half shaft 7, the driving force for driving the annular brake disc 3 to drive the wheel to rotate can generate larger torque under the action of providing the same driving force by the driving motor 5, and on the premise that the driving torque demand of the vehicle is the annular brake disc 3, the driving of the wheel to rotate, the driving the annular brake disc 3 and the battery can effectively reduce the performance requirement for the running of the electric energy consumption, the battery capacity, and the use cost of the battery, thereby the vehicle, and the cost of the vehicle can be effectively reduced; the driving assembly provided by the embodiment maintains the function of realizing wheel braking by matching the brake disc with the brake caliper 2 on the basis of realizing wheel braking by braking the brake disc with the existing brake caliper 2, improves the structure of the brake disc, and finally realizes integration of vehicle braking and driving by additionally arranging the driving motor 5, thereby improving the utilization rate of the brake disc, having simple structure and being convenient to manufacture and install; it should be noted that the axial limitation of the half shaft 7 by the specific vehicle body may be implemented by using a conventional structure capable of implementing axial limitation, so that the axial limitation of the wheel hub 1 may be implemented by setting the half shaft 7 to be fixedly connected with the wheel hub 1, or by adding a bearing between the half shaft 7 and the wheel hub 1, so that the half shaft 7 is fixedly connected with the bearing inner ring, and the wheel hub 1 is fixedly connected with the bearing outer ring to implement the axial limitation of the wheel hub 1; and preferably, the half shaft 7 is fixedly connected with the wheel hub 1, the half shaft 7 can rotate around the axis of the half shaft 7 in the half shaft 7 shell, and the end, far away from the wheel hub 1, of the half shaft 7 is provided with the auxiliary motor, so that the auxiliary motor is in transmission connection with the end, far away from the wheel hub 1, of the half shaft 7 and can provide power for the rotation of the half shaft 7, and the traditional driving structure is combined with a driving structure for driving the annular brake disc 3 to drive the wheel to rotate, and the traditional driving structure and the driving structure are matched with each other and mutually assisted.
Furthermore, the axes of the motor shafts are symmetrical about the axis of the annular brake disc 3, so that the force transmitted to the annular brake disc 3 on each driving gear 4 can be more stable and uniform.
As a preferred embodiment of the present embodiment, the number of the driving motors 5 is three, so that the force transmission is more stable and uniform; it should be noted that the number of the driving motors 5 is not limited to three, and the number of the driving motors 5 may be adjusted according to the power requirement.
Further, the half shaft shell comprises a half shaft shell body 8 and a motor mounting plate 6, the motor mounting plate 6 is fixedly sleeved on the outer wall of the half shaft shell body 8, and one end of the half shaft 7 is used for extending out of the half shaft shell body 8 and is fixedly connected with the hub 1; each motor shell is used for being fixedly arranged on the motor mounting plate 6, and the semi-axis shell body 8 and the motor mounting plate 6 can be manufactured by adopting integral forming or can be manufactured by adopting split manufacturing and then assembling.
Further, at least one mounting groove has been seted up on the lateral wall that is close to wheel hub 1 on the motor mounting panel 6, and the quantity of mounting groove equals with driving motor 5's quantity, the one end of keeping away from wheel hub 1 of each motor casing is used for stretching into in each mounting groove and is fixed in each mounting groove, can pass through bolt fixed connection's basis at each motor casing and motor mounting panel 6, fill adhesive or welding etc. between the one end of keeping away from wheel hub 1 of each motor casing and each mounting groove, in order to improve the steadiness ability that each motor casing is connected with motor mounting panel 6.
Further, the driving assembly provided by this embodiment further includes a control module, the control module is configured to be in communication connection with each driving motor 5, and the control module can control each driving motor 5 to operate, for example, when the vehicle climbs a slope or accelerates suddenly, all the driving motors 5 are turned on to provide a larger power, when the vehicle runs stably, part of the driving motors 5 are controlled to operate, and part of the driving motors 5 are controlled to be stopped, so that the driving motors 5 in the operating state are kept to operate in a higher efficiency region as much as possible, the operating efficiency of the driving motors 5 is improved, and the utilization rate of electric energy can be improved, and the consumption of electric energy is reduced.
Example two
The embodiment provides a vehicle, which comprises a vehicle main body and the driving assembly in the first embodiment.
In the vehicle provided by the embodiment, the inner wall of the annular brake disk 3 is provided with the plurality of teeth, the driving gear 4 on the motor shaft is arranged to be meshed with the teeth on the inner wall of the annular brake disk 3, the driving gear 4 is driven to rotate by the rotation of the motor shaft, and the annular brake disk 3 and the hub 1 are further driven to rotate, compared with the prior art that the half shaft 7 is driven to rotate by a motor to drive a wheel to rotate, because a space is reserved between the teeth on the inner wall of the annular brake disk 3 and the half shaft 7, the annular brake disk 3 is driven to drive the wheel to rotate, and under the action of driving force with the same size provided by the driving motor 5, a larger torque can be generated, and on the premise that the vehicle driving torque requirement is the same, the annular brake disk 3 is driven to drive the wheel to rotate, and the driving motor 5 needs to provide a smaller driving force, so that the performance requirement on the driving motor 5 can be effectively reduced, the electric energy consumption can be reduced, the electric quantity of a battery can be saved, the battery endurance mileage of the battery can be effectively prolonged, the service life of the vehicle can be ensured, and the manufacturing, use and the maintenance cost of the vehicle can be effectively saved; according to the vehicle provided by the embodiment, on the basis that the existing brake caliper 2 brakes a brake disc to realize wheel braking, the function that the brake disc is matched with the brake caliper 2 to realize wheel braking is kept, the structure of the brake disc is improved, and the driving motor 5 is additionally arranged, so that the vehicle braking and driving integration is finally realized, the utilization rate of the brake disc is improved, and the vehicle is simple in structure and convenient to manufacture and install; it should be noted that the axial limitation of the half shaft 7 by the specific vehicle body may be implemented by a conventional structure capable of implementing axial limitation, so that the axial limitation of the wheel hub 1 may be implemented by setting the half shaft 7 to be fixedly connected with the wheel hub 1, or by additionally installing a bearing between the half shaft 7 and the wheel hub 1, so that the half shaft 7 is fixedly connected with the bearing inner ring, and the wheel hub 1 is fixedly connected with the bearing outer ring to implement the axial limitation of the wheel hub 1.
Further, the vehicle is an electric automobile, and it is preferred that, set up semi-axis 7 and wheel hub 1 fixed connection, and semi-axis 7 can rotate around the axis of semi-axis 7 in semi-axis 7 shell, and set up the auxiliary motor in the one end of keeping away from wheel hub 1 on semi-axis 7, make this auxiliary motor be connected with the one end transmission of keeping away from wheel hub 1 on semi-axis 7 and can provide power for semi-axis 7 rotates, realize traditional drive structure and drive ring shape brake disc 3 drive wheel pivoted drive structure and combine together, mutually support.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A drive assembly, characterized by: the brake system comprises an annular brake disc, half shafts, a half shaft shell and at least one driving motor, wherein the half shaft shell is fixedly connected to a vehicle main body, each driving motor comprises a motor shell and a motor shaft, each motor shell is fixedly arranged on the outer wall of the half shaft shell, one end of each motor shaft is used for extending out of each motor shell, a driving gear is fixedly sleeved on a part, extending out of each motor shell, of each motor shaft, one end of each half shaft is used for extending out of the half shaft shell, the annular brake disc is used for being arranged between a wheel hub and each driving motor and is fixedly connected with the wheel hub, a plurality of teeth are arranged on the inner wall of the annular brake disc, a space is reserved between the teeth on the inner wall of the annular brake disc and the half shafts, and the teeth on the inner wall of the annular brake disc can be meshed with the driving gears; the motor shaft rotates to drive the annular brake disc to rotate; the axes of the annular brake disc, the wheel hub and the half shaft are collinear, and the axis of each motor shaft is parallel to the axis of the annular brake disc.
2. The drive assembly of claim 1, wherein: the axis of each motor shaft is symmetrical with respect to the axis of the annular brake disc.
3. The drive assembly of claim 2, wherein: the number of the driving motors is three.
4. The drive assembly of claim 1, wherein: the half shaft shell comprises a half shaft shell body and a motor mounting plate, the motor mounting plate is fixedly sleeved on the outer wall of the half shaft shell body, and one end of the half shaft is used for extending out of the half shaft shell body and is fixedly connected with the wheel hub; each motor casing all is used for fixed locating on the motor mounting panel.
5. The drive assembly of claim 4, wherein: the motor mounting plate is provided with at least one mounting groove on the side wall close to the hub, the number of the mounting grooves is equal to that of the driving motors, and one end of each motor shell, which is far away from the hub, is used for extending into each mounting groove and fixing in each mounting groove.
6. The drive assembly of claim 1, wherein: the control module is used for being in communication connection with the driving motors and can control the driving motors to operate.
7. A vehicle, characterized in that: comprising a vehicle body and a drive assembly according to any one of claims 1-6.
8. The drive assembly of claim 7, wherein: the vehicle is an electric automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310142749.9A CN115972818A (en) | 2023-02-21 | 2023-02-21 | Drive assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310142749.9A CN115972818A (en) | 2023-02-21 | 2023-02-21 | Drive assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115972818A true CN115972818A (en) | 2023-04-18 |
Family
ID=85965065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310142749.9A Pending CN115972818A (en) | 2023-02-21 | 2023-02-21 | Drive assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115972818A (en) |
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2023
- 2023-02-21 CN CN202310142749.9A patent/CN115972818A/en active Pending
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