CN220764079U - Wheel driving system - Google Patents
Wheel driving system Download PDFInfo
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- CN220764079U CN220764079U CN202322259051.3U CN202322259051U CN220764079U CN 220764079 U CN220764079 U CN 220764079U CN 202322259051 U CN202322259051 U CN 202322259051U CN 220764079 U CN220764079 U CN 220764079U
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Abstract
The utility model relates to the field of vehicles, in particular to a wheel edge driving system which comprises a driving mechanism, wherein the driving mechanism is connected with a wheel shaft on a wheel through a planetary gear mechanism; the wheel shaft is connected to the hub center of the wheel; the driving mechanism comprises a driving part; the driving part comprises a driving motor; the driving motor is connected with a wheel shaft through a planetary gear mechanism; the utility model discloses a wheel driving system; through the arrangement of the wheel edge driving system, the tire provided with the wheel edge driving system has more flexibility and independence; the device can be operated better according to the environment and working conditions when in actual use; meanwhile, the wheel side driving system disclosed by the utility model can realize normal large torque transmission and simultaneously reduce the generation of impact force during driving of the wheel side driving system through the arrangement of the planetary gear mechanism.
Description
Technical Field
The utility model relates to the field of vehicles, in particular to a wheel side driving system.
Background
With the continuous improvement of the national requirements for vehicle emission, the electric vehicle is also increasingly widely applied.
At present, an electric vehicle usually changes an engine of a traditional vehicle into a motor, power is transmitted to wheels through a transmission mechanism such as a speed changer, a differential mechanism and a driving shaft by an original transmission system, the transmission mechanism needs larger arrangement space, the loss in the energy transmission process is larger, and the utilization efficiency of the motor is lower.
At present, some electric vehicles directly drive wheels to rotate by arranging a wheel driving device, however, the wheel driving device only has a single reduction ratio and cannot realize a gear shifting function, so that the reduction ratio of the wheel driving device is usually set to be larger in order to enable the electric vehicle to have better climbing capacity and better power, the linear acceleration performance of the electric vehicle is poor, and proper reduction ratio is difficult to select according to different road conditions.
In order to ameliorate or solve at least one of the above problems, there is a need for an optimized design of existing wheel drive systems.
Disclosure of Invention
It is an object of the present utility model to provide a wheel drive system in which the gear ratio can be changed as desired.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the wheel edge driving system comprises a driving mechanism, wherein the driving mechanism is connected with a wheel shaft on a wheel through a planetary gear mechanism;
the wheel shaft is connected to the hub center of the wheel;
the driving mechanism comprises a driving part; the driving part comprises a driving motor; the driving motor is connected with the wheel shaft through the planetary gear mechanism.
The planetary gear mechanism comprises a shell, and a double-order planetary gear set is arranged in the shell; the double-stage planetary gear set comprises a first planet carrier, a sun gear, a planetary gear set, a gear ring and a second planet carrier arranged on a wheel shaft; each of the planetary gear sets generally includes a first planetary gear and a second planetary gear disposed on the first planetary gear; the planetary gear set is respectively connected with the first planet carrier and the second planet carrier through a shaft coupling; the sun gear is connected with the driving part; the sun gear is meshed with a first planetary gear in the planetary gear set; the second planetary gear is meshed with the gear ring; the gear ring is connected to the inner wall of the shell.
The driving part is connected with the planetary gear mechanism through a transmission mechanism; the transmission mechanism comprises a transmission shaft, and the driving part is connected with a sun gear in the planetary gear mechanism through the transmission shaft.
The driving part is connected with the transmission shaft through a gear set; the gear set comprises a transmission gear arranged on the transmission shaft and a driving gear arranged on the driving part; the driving gear is meshed with the transmission gear.
The driving mechanism comprises two driving parts, and the two driving parts are connected with the transmission shaft.
The two driving parts are connected with the transmission shaft through gear sets; the transmission gears in the gear sets connected with the two driving parts are common gears.
The number of teeth of the driving gears connected with the two driving parts is equal to or equal to each other.
The utility model has the advantages that:
the utility model discloses a wheel driving system; through the arrangement of the wheel edge driving system, the tire provided with the wheel edge driving system has more flexibility and independence; can be operated better according to the environment and working condition when in actual use.
Meanwhile, the wheel side driving system disclosed by the utility model can realize normal large torque transmission and simultaneously reduce the generation of impact force during driving of the wheel side driving system through the arrangement of the planetary gear mechanism.
And the planetary gear mechanism disclosed by the utility model comprises a double-order planetary gear set; through the arrangement of the double-order planetary gear set, the axial size of the planetary gear mechanism can be reduced while the wheel side driving system has higher gear ratio, and then the requirements of various vehicles under different loads and operating environments can be met.
Drawings
The contents of the drawings and the marks in the drawings of the present specification are briefly described as follows:
fig. 1 is a schematic structural view of a first embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a second embodiment of the present utility model.
Fig. 3 is a schematic structural view of a third embodiment of the present utility model.
FIG. 4 is a schematic diagram of the driving mechanism according to the present utility model using gears with different numbers of teeth.
The labels in the above figures are:
1. tyre, 2, hub, 3, wheel axle, 4, driving motor, 5, double-stage planetary gear set, 6, shell, 7 and transmission mechanism.
Detailed Description
The following detailed description of the utility model refers to the accompanying drawings, which illustrate preferred embodiments of the utility model in further detail.
A wheel side driving system comprises a driving mechanism, wherein the driving mechanism is connected with a wheel shaft 3 on a wheel 1 through a planetary gear mechanism; the utility model discloses a wheel driving system; through the arrangement of the wheel edge driving system, the tire provided with the wheel edge driving system has more flexibility and independence; can be operated according to the environment better when in actual use; meanwhile, the wheel side driving system disclosed by the utility model can realize normal large torque transmission and simultaneously reduce the generation of impact force during driving of the wheel side driving system through the arrangement of the planetary gear mechanism.
The wheel side driving system disclosed by the utility model is mainly used for driving the corresponding wheel 1, so that the running speed of the wheel 1 is conveniently increased, and the escaping capability of the wheel 1 is improved.
When the wheel rim driving system disclosed by the utility model is used, the wheel rim driving system is arranged on the inner side of the corresponding wheel 1 and is used for driving the corresponding wheel 1 to move, so that the corresponding driving function is realized.
Specifically, the method comprises the following steps; the wheel side driving system mainly comprises a driving mechanism, wherein the driving mechanism mainly comprises a part for providing running power for wheels 1; the main component is typically the drive motor 41, which in the present utility model is connected to the wheel axle 3 on the wheel 1 via a planetary gear mechanism; the power transmission device not only can realize normal power transmission, but also can ensure the stability of power transmission and the smoothness of the operation of the wheel side driving system.
In addition, in the utility model, the driving mechanism disclosed by the utility model is mainly connected with the wheel shaft 3 of the wheel 1, the wheel shaft 3 belongs to the prior art, and the description is omitted herein, and the wheel shaft 3 is connected with the center of the hub 2 of the wheel 1 in actual implementation; by the arrangement, the wheels 1 can normally rotate when driven by the follow-up driving mechanism, and the influence of eccentric rotation of the wheels 1 on normal use is avoided.
Meanwhile, the driving mechanism includes a driving section 4 in the present utility model; the driving section 4 includes a driving motor 41; the driving motor 41 is connected with the wheel shaft 3 through a planetary gear mechanism; the utility model is realized by
The planetary gear mechanism comprises a shell 6, and a double-order planetary gear set 5 is arranged in the shell 6; the double-stage planetary gear set 5 disclosed by the utility model is mainly provided with two groups of planetary gears, the two planetary gears are coaxially distributed, the first planetary gear 521 is meshed with the sun gear 53, and the second planetary gear is meshed with the gear ring 54, so that the driving system disclosed by the utility model can reduce the axial size of a planetary gear mechanism while having higher gear tooth ratio in actual use based on the design, and can further adapt to the requirements of various vehicles under different loads and operating environments; has excellent use effect.
Further, the double-stage planetary gear set 5 includes a first carrier 51, a sun gear 53, a planetary gear set 52, a ring gear 54, and a second carrier 55 provided on the wheel shaft 3 in the present utility model; each of the planetary gear sets 52 generally includes a first planetary gear 521 and a second planetary gear 522 disposed on the first planetary gear 521; the planetary gear set 52 is connected with the first planet carrier 51 and the second planet carrier 55 through a shaft coupling respectively; the sun gear 53 is connected to the driving unit 4; the sun gear 53 is in mesh with the first planetary gear 521 of the planetary gear set 52; the second planetary gears 522 mesh with the ring gear 54; the ring gear 54 is attached to the inner wall of the housing 6; based on the above design, it can be known that the double-stage planetary gear set 5 disclosed in the utility model mainly integrates two planetary gears, the first planetary gear 521 is meshed with the sun gear 53, and then meshed with the ring gear 54 through the second planetary gear 522, and after meshing, the second planetary gear set 55 is driven to operate; thereby realizing power transmission and ensuring the driving operation of the wheel 1 in the subsequent use, and in the practical use, the utility model sets the matching of the teeth numbers of the sun gear 53, the first planetary gear 521, the second planetary gear 522 and the gear ring 54; the planetary gear mechanism disclosed by the utility model has more gear tooth ratios, so that different gear tooth ratios can be conveniently selected according to requirements, and the planetary gear mechanism is better suitable for the requirements of various vehicles under different loads and operating environments.
Further, in the present utility model, the driving part 4 is connected with the planetary gear mechanism through a transmission mechanism 7; the transmission mechanism 7 comprises a transmission shaft 71, and the driving part 4 is connected with a sun gear 53 in the planetary gear mechanism through the transmission shaft 71; specifically, the driving part 4 is connected with a double-order planetary gear set 5 in a planetary gear mechanism through a transmission mechanism 7; the utility model facilitates the connection between the driving part 4 and the double-stage planetary gear set 5 through the arrangement of the transmission mechanism 7, in other words, the utility model facilitates the normal transmission of the power of the driving part 4 to the double-stage planetary gear set 5 through the arrangement of the transmission shaft 71, and meanwhile, the arrangement of the transmission shaft 71 can realize the eccentric arrangement of the driving part 4, namely the eccentric arrangement of the driving motor 41; in actual use, the output shaft 42 of the driving motor 41 is connected with the transmission shaft 71, and the output shaft and the transmission shaft can be connected through a gear set, a belt and a belt wheel for transmission, and other connection modes are also feasible; the arrangement of the transmission shaft 71 can increase the arrangement position of the driving motor 41, the driving motor 41 can be coaxially arranged with the transmission shaft 71, and the driving motor 41 can be arranged eccentrically in a staggered way, so that the diversity of the arrangement position of the driving part 4 is increased, the arrangement position of the driving motor 41 can be changed according to the requirement in actual use, and the application range of the utility model is increased to a certain extent.
Further, in the present utility model, the driving part 4 is connected to the transmission shaft 71 through a gear set; the gear set is convenient for eccentric arrangement of the driving motor 41, meanwhile, the transmission of power by the driving motor 41 box transmission shaft 71 is also convenient, meanwhile, the gear set added can change the gear ratio of the whole wheel side driving system, the transmission efficiency of the whole driving system can be changed more widely, and the application range of the utility model is increased better.
Further, in the present utility model, the gear set includes a transmission gear 72 provided on the transmission shaft 71 and a driving gear 43 provided on the driving portion 4; the driving gear 43 is meshed with the transmission gear 72; when in subsequent use; the driving gear 43 is generally disposed on the output shaft 42 of the driving motor 41 in the driving portion 4, the driving motor 41 drives the driving gear 43 to rotate, the driving gear 43 drives the transmission gear 72 to rotate, the transmission shaft 71 is connected with the sun gear 53 of the double-stage planetary gear set 5, the sun gear 53 is meshed with the first planetary gear 521, the first planetary gear 521 drives the second planetary gear 522 to move, and the second planetary gear 522 and the gear ring 54 are mutually matched, so that each second planetary gear 522 rotates around the gear ring 54, thereby driving the second planet carrier 55 to rotate, and finally the second planet carrier 55 drives the wheel shaft 3 to rotate, thereby driving the wheel 1.
Further, in the present utility model, the driving mechanism includes two driving parts 4, and both driving parts 4 are connected to the transmission shaft 71; the wheel side driving system disclosed by the utility model can form two-gear speed ratios by arranging the two driving parts 4, and meanwhile, the driving motor 41 of the driving part 4 can be used for distributing corresponding loads by adopting the two driving parts 4, so that the service life of the driving motor 41 is prolonged.
Meanwhile, in the utility model, the two driving parts 4 are connected with the transmission shaft 71 through gear sets; the transmission gear 72 in the gear set connected with the two driving parts 4 is a common gear; in other words, the two driving parts 4 are respectively meshed with the transmission gear 72 on the transmission shaft 71 through one driving gear 43, so that the power output by the two driving parts 4 can be overlapped on the transmission gear 72, the driving operation of the two driving parts 4 on the wheel 1 is convenient, of course, the driving mechanism can be provided with more driving parts 4, each driving part 4 is meshed with the transmission gear 72 on the transmission shaft 71 through one driving gear 43, and the high torque and high speed requirement of the wheel 1 can be realized through the arrangement; more convenient to use in practical implementation.
In the present utility model, the number of teeth of the drive gears 43 connected to the two drive units 4 is different or the same; in other words, the number of teeth of the drive gear 43 to which each drive section 4 is connected may be set as needed; when the number of teeth of the driving gears 43 in each driving part 4 is the same, the driving gears can be used for representing a single speed ratio, ensuring the running stability of the whole device and simultaneously realizing the requirement group of high torque and high speed of the wheel 1; in actual use, depending on torque requirements or overall efficiency considerations, both motors may be activated to increase drive capability.
When the number of teeth on the driving gear 43 in each driving part 4 is different, the gear ratio between each driving part 4 and the transmission shaft 71 is different, so that the wheel side driving system disclosed by the utility model has a two-gear speed ratio, can be replaced in actual use, realizes low-speed large torque or high-speed small torque, and is more convenient for changing the running condition of the wheel 1 according to actual working conditions.
Meanwhile, the motors of the two driving parts can be replaced according to the needs, one driving part is a driving motor, and the motor of the other driving part can be replaced by a generator and the like; in the design, when one motor/gear set is driven and the other motor/gear set is driven in actual use, the wheel driving system disclosed by the utility model can be used for charging the vehicle-mounted battery by arranging the wire harness under the working condition; of course, whether such a design is required or not may be selected as desired.
Specifically:
the wheel side driving system disclosed by the utility model adopts a single double-stage planetary gear set 5 design, and can achieve a gear ratio (7-13:1) which is more compact and higher than that of the tire side of a common wheel side driving system, so that the wheel side driving system can meet the requirements of various vehicles under different loads and operating environments.
In addition, the location of the drive motor 41 of the present disclosure may be centrally or eccentrically positioned as desired by the environment (e.g., anti-vibration configuration).
And the driving mechanism disclosed by the utility model comprises a plurality of driving parts 4, namely one or more smaller motors can be used for driving the transmission mechanism 7 in actual use, and the transmission mechanism is output through the double-stage planetary gear set 5.
Based on the above design, the same number of teeth is adopted for the driving gears 43 to which the respective driving sections 4 are connected; it is possible to realize a driving operation of each driving portion 4 for the wheel 1 using a single speed ratio.
And when the driving gears 43 connected with the driving parts 4 adopt different tooth numbers; different speed ratios can be realized; in the above embodiment, when two driving units 4 and a driving gear 43 are provided, a two-speed ratio (i.e., a low speed, a large torque, and a high speed, small torque map) can be realized; the second gear ratio does not require any side effects and any clutch shift during shifting, and only the attached drive motor 41 is required to be started/shut down.
The wheel side driving system disclosed by the utility model ensures that the tire speed connected with the driving system has the flexible and independent characteristics, so that a differential mechanism is not required to be used; after the four tires are respectively provided with the wheel side driving system, the four tires of the wheel 1 have increased flexibility, have the capability of changing the driving mode along with the environment (such as climbing, road sliding, wading and the like) and are more convenient for controlling the running of the automobile.
In addition, the wheel driving system disclosed by the utility model has the advantages of more compact structure and multiple configuration; the number of the compact double-order planetary gears can be increased or decreased according to the load requirement, and the size and the cost of the compact double-order planetary gears (except for a planet carrier, other gear accessories can be designed in the same way) are superior to those of parallel shafts; meanwhile, as the on/off of each bead driving motor 41 can be operated according to the environmental requirement, the optimal selection can be achieved by matching with a control system in terms of power consumption/efficiency; the used by the wheel side driving system disclosed by the utility model can be used for large hauling or construction vehicles besides common medium and small buses.
Because the characteristics that a plurality of driving parts 4 can be designed in actual arrangement, namely a plurality of small motors can be arranged on a single wheel, the device has more use scenes and working conditions in subsequent use, and meets the actual production requirement better.
It is obvious that the specific implementation of the present utility model is not limited by the above-mentioned modes, and that it is within the scope of protection of the present utility model only to adopt various insubstantial modifications made by the method conception and technical scheme of the present utility model.
Claims (7)
1. The wheel edge driving system is characterized by comprising a driving mechanism, wherein the driving mechanism is connected with a wheel shaft on a wheel through a planetary gear mechanism;
the wheel shaft is connected to the hub center of the wheel;
the driving mechanism comprises a driving part; the driving part comprises a driving motor; the driving motor is connected with a wheel shaft through a planetary gear mechanism;
the planetary gear mechanism comprises a shell, and a double-order planetary gear set is arranged in the shell.
2. The wheel side drive system of claim 1, wherein the dual-stage planetary gear set comprises a first carrier, a sun gear, a planetary gear set, a ring gear, and a second carrier disposed on a wheel axle; each of the planetary gear sets includes a first planetary gear and a second planetary gear disposed on the first planetary gear; the planetary gear set is respectively connected with the first planet carrier and the second planet carrier through a shaft coupling; the sun gear is connected with the driving part; the sun gear is meshed with a first planetary gear in the planetary gear set; the second planetary gear is meshed with the gear ring; the gear ring is connected to the inner wall of the shell.
3. A wheel side drive system according to claim 1, wherein the drive section is connected to the planetary gear mechanism via a transmission mechanism; the transmission mechanism comprises a transmission shaft, and the driving part is connected with a sun gear in the planetary gear mechanism through the transmission shaft.
4. A wheel side drive system according to claim 3, wherein the drive section is connected to the drive shaft by a gear set; the gear set comprises a transmission gear arranged on the transmission shaft and a driving gear arranged on the driving part; the driving gear is meshed with the transmission gear.
5. A wheel drive system according to claim 4, wherein the drive mechanism comprises two drive portions, both of which are connected to the drive shaft.
6. A wheel side drive system according to claim 1, wherein both of the drive portions are connected to the drive shaft by a gear set; the transmission gears in the gear sets connected with the two driving parts are common gears.
7. A wheel rim driving system according to claim 4, wherein the number of teeth of the driving gears to which the two driving portions are connected is equal or identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259051.3U CN220764079U (en) | 2023-08-22 | 2023-08-22 | Wheel driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259051.3U CN220764079U (en) | 2023-08-22 | 2023-08-22 | Wheel driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220764079U true CN220764079U (en) | 2024-04-12 |
Family
ID=90599253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322259051.3U Active CN220764079U (en) | 2023-08-22 | 2023-08-22 | Wheel driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220764079U (en) |
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2023
- 2023-08-22 CN CN202322259051.3U patent/CN220764079U/en active Active
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