CN213655614U - Wheel edge driving assembly - Google Patents
Wheel edge driving assembly Download PDFInfo
- Publication number
- CN213655614U CN213655614U CN202021879486.8U CN202021879486U CN213655614U CN 213655614 U CN213655614 U CN 213655614U CN 202021879486 U CN202021879486 U CN 202021879486U CN 213655614 U CN213655614 U CN 213655614U
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- gear
- hub unit
- driving shaft
- driving
- shaft
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Abstract
The utility model discloses a wheel driving assembly, which relates to the field of automobile parts and comprises a driving shaft and a hub unit, wherein the driving shaft is supported on the hub unit through a supporting bearing, a driving shaft gear is arranged on the driving shaft and is used for driving a driven gear to rotate, gear shafts are fixedly arranged on the driven gear, each gear shaft is sleeved with a planetary gear, and each planetary gear is meshed with a sun gear to form a planetary gear train; the sun wheel is sleeved on the hub unit and is meshed with the external spline on the outer surface of the flange of the hub unit; a brake disc is coaxially arranged on the leading end of the flange plate of the hub unit; the hub unit is mounted on the knuckle. The utility model integrates the speed reducer into the assembly, and performs stable transmission speed reduction through two-stage speed reduction; meanwhile, the bearing unit of the hub motor can bear the maximum torque of not less than 800Nm, the integral transmission performance of the speed reducer can be effectively enhanced, and the service life of the integral hub motor is prolonged; the overall structure of the assembly is smaller in size and more compact in structure, and the assembly is convenient to assemble with a motor subsequently.
Description
Technical Field
The utility model relates to an automobile parts's field, concretely relates to wheel limit drive assembly.
Background
The wheel edge drive adopts a mode of installing a wheel edge motor on the wheel edge to realize the independent drive of the wheel. The hub unit for the existing wheel-side motor can bear smaller torque, so that the transmission performance of the bearing unit is poor, and the service life of the bearing is shorter. Meanwhile, the existing wheel edge driving assembly is complex in structure, low in energy utilization rate, large in size and not beneficial to assembly of a motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide a wheel limit drive assembly, have compact structure, the volume is littleer, motor simple to operate's advantage.
The purpose of the utility model is accomplished through following technical scheme: the wheel edge driving assembly comprises a driving shaft and a hub unit, wherein the driving shaft is supported on the hub unit through a supporting bearing, a driving shaft gear meshed with a driven gear is arranged on the driving shaft and is used for driving the driven gear to rotate, at least two gear shafts are fixedly arranged on the driven gear through deep groove ball bearings, the distance between the axis of each gear shaft and the driving shaft is equal, a planetary gear is sleeved on each gear shaft, and each planetary gear is meshed with a sun gear to form a planetary gear train; the sun wheel is sleeved on the hub unit and is meshed with the external spline on the outer surface of the flange of the hub unit to realize transmission; a brake disc is coaxially arranged on the leading end of the flange plate of the hub unit and is used for realizing the braking of the whole vehicle by matching with a disc brake; the wheel hub unit is installed on the knuckle, and the steering of the whole vehicle is realized.
As a further technical scheme, the number of teeth of the driving shaft gear is smaller than that of the driven gear, so that one-time speed reduction is realized; the number of teeth of the planetary gear is smaller than that of the sun gear, so that secondary speed reduction is realized; the total reduction ratio of the two-stage speed reduction is 1-9.
As a further technical scheme, the driven gear is in key connection through a pin key on the gear shaft to drive the gear shaft, and the gear shaft is in key connection through the pin key to drive the planetary gear.
The utility model has the advantages that: the speed reducer is integrated in the assembly, and stable transmission speed reduction can be performed through secondary speed reduction; meanwhile, the bearing unit of the hub motor can bear the maximum torque of not less than 800Nm, the integral transmission performance of the speed reducer can be effectively enhanced, and the service life of the integral hub motor is prolonged; the overall structure of the assembly is smaller in size and more compact in structure, and the assembly is convenient to assemble with a motor subsequently.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the driving shaft 1, the driven gear 2, the planetary gear 3, the sun gear 4, the gear shaft 5, the hub unit 6, the brake disc 7, the steering knuckle 8, the deep groove ball bearing 9 and the support bearing 10.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in fig. 1, the wheel-side driving assembly includes a driving shaft 1 and a hub unit 6, wherein the driving shaft 1 is supported on the hub unit 6 through a supporting bearing 10, a driving shaft gear meshed with a driven gear 2 is arranged on the driving shaft 1 and is used for driving the driven gear 2 to rotate, at least two gear shafts 5 (two in the embodiment) are fixedly arranged on the driven gear 2 through deep groove ball bearings 9 (which reduce radial load and stabilize the relative position of the driving shaft 1 in the transmission process), the driven gear 2 is connected with the gear shafts 5 through pin keys on the gear shafts 5 to drive the gear shafts 5, the distance between the axes of the gear shafts 5 and the driving shaft 1 is equal, each gear shaft 5 is sleeved with a planetary gear 3 (the gear shafts 5 are connected with the planetary gear 3 through the pin keys), and the planetary gears 3 are meshed with a sun gear 4 to form; the sun gear 4 is sleeved on the hub unit 6 and is meshed with an external spline on the outer surface of a flange of the hub unit 6 to realize transmission; a brake disc 7 (providing accurate guidance for the rotation of the brake disc 7) is coaxially arranged at the leading end of a flange plate of the hub unit 6 and is used for realizing the braking of the whole vehicle by matching with a disc brake; the hub unit 6 is mounted on a steering knuckle 8, transfers and bears the load of a wheel, and supports and drives the wheel to rotate around a main shaft so as to steer the automobile. The number of teeth of the driving shaft is less than that of the driven gear 2, so that a primary speed reduction effect is achieved; the number of teeth of the planetary gear 3 is smaller than that of the sun gear 4, so that a secondary speed reduction effect is achieved; the total reduction ratio of the two-stage speed reduction is 1-9.
The utility model discloses a working process: when the hub unit 6 is mounted on the knuckle 8 and locked by bolts, the driven gear 2, the planetary gear 3, the sun gear 4 and the gear shaft 5 are mounted on the hub unit 6, the driving shaft 1 is supported on the hub unit 6 and meshed with the driven gear 2, then the hub unit is mounted on a connecting plate and locked by bolts, and finally the motor is mounted on the wheel edge. When the automobile steering device works, the driving shaft 1 is connected with the driving gear to drive the driven gear 2 to rotate through the driving shaft gear, the driven gear 2 drives each planetary gear 3 to rotate through the gear shaft 5, the planetary gears 3 drive the sun gear 4 to rotate while rotating around the sun gear 4, the sun gear 4 finally drives the hub unit 6 to rotate through spline transmission, and meanwhile, the hub unit 6 is installed on the steering knuckle 8 to transmit and bear the load of the automobile wheel and support and drive the automobile wheel to rotate around the main shaft to enable the automobile to steer.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (3)
1. A wheel limit drive assembly which characterized in that: the driving mechanism comprises a driving shaft (1) and a hub unit (6), wherein the driving shaft (1) is supported on the hub unit (6) through a supporting bearing (10), a driving shaft gear meshed with a driven gear (2) is arranged on the driving shaft (1) and used for driving the driven gear (2) to rotate, at least two gear shafts (5) are fixedly arranged on the driven gear (2) through deep groove ball bearings (9), the distance between the axis of each gear shaft (5) and the driving shaft (1) is equal, a planetary gear (3) is sleeved on each gear shaft (5), and each planetary gear (3) and a sun gear (4) are meshed to form a planetary gear train; the sun wheel (4) is sleeved on the hub unit (6) and is meshed with an external spline on the outer surface of a flange of the hub unit (6) to realize transmission; a brake disc (7) is coaxially arranged on the leading end of the flange plate of the hub unit (6) and is used for matching with a disc brake to realize the braking of the whole vehicle; the wheel hub unit (6) is installed on the steering knuckle (8) to realize the steering of the whole vehicle.
2. The wheel-drive assembly as set forth in claim 1, wherein: the number of teeth of the driving shaft is less than that of the driven gear (2), so that one-time speed reduction is realized; the number of teeth of the planetary gear (3) is less than that of the sun gear (4), so that secondary speed reduction is realized; the total reduction ratio of the two-stage speed reduction is 1-9.
3. The wheel-drive assembly as set forth in claim 1, wherein: the driven gear (2) is connected with the driving gear shaft (5) through a pin key on the gear shaft (5), and the gear shaft (5) is connected with the driving planetary gear (3) through the pin key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879486.8U CN213655614U (en) | 2020-09-01 | 2020-09-01 | Wheel edge driving assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879486.8U CN213655614U (en) | 2020-09-01 | 2020-09-01 | Wheel edge driving assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213655614U true CN213655614U (en) | 2021-07-09 |
Family
ID=76694134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021879486.8U Active CN213655614U (en) | 2020-09-01 | 2020-09-01 | Wheel edge driving assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213655614U (en) |
-
2020
- 2020-09-01 CN CN202021879486.8U patent/CN213655614U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |