CN220281484U - Drive-by-wire wheel limit turns to drive assembly - Google Patents
Drive-by-wire wheel limit turns to drive assembly Download PDFInfo
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- CN220281484U CN220281484U CN202321598529.9U CN202321598529U CN220281484U CN 220281484 U CN220281484 U CN 220281484U CN 202321598529 U CN202321598529 U CN 202321598529U CN 220281484 U CN220281484 U CN 220281484U
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- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a drive-by-wire wheel steering drive assembly, which comprises a steering output shaft of a steering motor, a corner bracket and a steering knuckle, wherein the corner bracket comprises a corner bracket body, a motor connecting part and a first wheel connecting part, wherein the motor connecting part and the first wheel connecting part are arranged on the corner bracket body; the steering knuckle comprises a steering knuckle body, a second wheel edge connecting part and a corner bracket connecting part, wherein the second wheel edge connecting part and the corner bracket connecting part are arranged on the steering knuckle body, the corner bracket connecting part is connected with the first wheel edge connecting part, the axis of the second wheel edge connecting part is parallel to the axis of the first wheel edge connecting part, and the wheel edge is connected with the second wheel edge connecting part; the steering driving assembly of the drive-by-wire wheel edge solves the problems in the prior art, and the steering driving assembly which has fewer structural parts, low assembly requirement, convenient installation and disassembly and small overall height is obtained.
Description
Technical Field
The utility model belongs to the field of vehicle wheel steering, and particularly relates to a drive-by-wire wheel steering driving assembly.
Background
The electric vehicle has the advantages of high energy utilization rate, less environmental pollution and the like, and has rapid development in recent years, and is considered as a necessary trend of future vehicle development, and the automatic driving pure electric vehicle is widely popularized and applied along with further improvement of the degree of automation and popularization of automatic driving technology. In the prior art, in order to simplify and reduce the vehicle structure, the steering motor drives the steering motor to steer, and the steering motor is closely arranged with the vehicle, so that the use of a steering gear and a front axle structure in the traditional vehicle is avoided, the chassis of the vehicle is simplified, and the height of the vehicle and the weight of the whole vehicle are reduced. But among the prior art, turn to motor drive wheel limit and turn to the structure comparatively complicated, installation cooperation precision requirement is high, assembly and dismantlement difficulty, as disclosed in application number 202022852192.2 "an intelligent four-wheel steering drive-by-wire chassis", it adopts parts such as four transition supports to transmit the moment of torsion of reduction gear output to the wheel limit in order to realize turning to, the use of four transition supports, the structural component that involves is more, assembly operation is complicated, and four transition supports are assembled the back highly, influence whole car height.
Disclosure of Invention
The utility model aims to provide a steer-by-wire wheel rim steering driving assembly, which solves the problems in the background art and has the advantages of few structural parts, low assembly requirement, convenient installation and disassembly and small overall height.
The technical scheme of the utility model relates to a drive-by-wire wheel rim steering driving assembly, which comprises the following components:
a steering motor including a steering motor body and a steering output shaft extending out of the steering motor body;
the steering device comprises a steering angle bracket, a steering shaft and a steering output shaft, wherein the steering angle bracket comprises a steering angle bracket body, a motor connecting part and a first wheel connecting part, the motor connecting part and the first wheel connecting part are arranged on the steering angle bracket body, the axis of the motor connecting part is arranged in a vertical state and is fixedly connected with the steering output shaft, the axis of the first wheel connecting part is arranged in a horizontal state, and the axis of the motor connecting part is vertically intersected with the axis of the first wheel connecting part;
the steering knuckle comprises a steering knuckle body, a second wheel edge connecting part and a corner support connecting part, wherein the second wheel edge connecting part and the corner support connecting part are arranged on the steering knuckle body, the corner support connecting part is connected with the first wheel edge connecting part, the axis of the second wheel edge connecting part is parallel to the axis of the first wheel edge connecting part, and the wheel edge is connected with the second wheel edge connecting part.
Preferably, the corner bracket body comprises a first bracket and a second bracket which are fixedly connected into a whole, and the motor connecting part and the first wheel edge connecting part are respectively arranged on the first bracket and the second bracket; the second support is in a vertical state, the first support is fixedly connected to the top of the second support and is arranged at an obtuse angle with the second support, and the first support is located above the steering knuckle.
Preferably, the motor connecting portion is arranged on the side surface, away from the steering knuckle, of the first bracket, the steering motor body is arranged above the first bracket, and the steering output shaft is arranged vertically downwards and fixedly connected with the motor connecting portion.
Preferably, the motor connecting part is a fixed connection shaft or connecting pipe fixedly connected with the first bracket, the fixed connection shaft or connecting pipe is coaxially arranged with the steering output shaft, and the fixed connection shaft or connecting pipe is fixedly connected with the steering output shaft through a coupler or a fixing pin.
Preferably, the steering knuckle body is arranged at one side of the second bracket, is positioned below the first bracket and is parallel to the second bracket, the second bracket is connected with the steering knuckle body through a plurality of connecting arms, and two ends of each connecting arm are respectively connected with the first wheel edge connecting part and the corner bracket connecting part.
Preferably, the first wheel edge connecting portion comprises a plurality of first connecting holes arranged on the second support, the corner support connecting portion comprises a plurality of second connecting holes arranged on the steering knuckle body, the axes of the first connecting holes and the axes of the second connecting holes are parallel and are all arranged in a horizontal state and are perpendicular to the axes of the motor connecting portions and the axes of the second wheel edge connecting portions, and two ends of the connecting arm are connected with the first connecting holes and the second connecting holes through connecting shafts respectively.
Preferably, the second wheel edge connecting part comprises a shaft hole arranged on the steering knuckle body, the axis of the shaft hole is coincident with the axis of the wheel edge, and the wheel edge is connected with the shaft hole through a wheel shaft and a bearing.
Preferably, the steering motor body comprises a gear motor, a first transmission shaft driven by the gear motor, a second transmission shaft driven by the first transmission shaft and a planetary gear driven by the second transmission shaft, and the steering output shaft is fixedly connected with a sun gear of the planetary gear.
The technical scheme of the utility model has the beneficial effects that the drive-by-wire wheel side steering drive assembly comprises the following components:
1. through the assembly of the knuckle and the corner bracket, the steering motor drives the corner bracket, the side steering of the driving wheel of the steering motor is realized, the torque output by the steering motor is directly transmitted to the wheel through the corner bracket and the knuckle, the output angle of the steering output shaft of the steering motor is the steering angle of the wheel, and the steering device has the advantages of simple structure, convenience in assembly and simple control process. Meanwhile, the structure of the chassis of the vehicle can be simplified, the traditional steering gear and front axle structure are omitted, and the height of the vehicle is reduced.
2. The corner support structural design makes the whole height of the steering drive assembly of the scheme smaller, is favorable for reducing the whole height of the vehicle and reduces the weight and cost of the whole vehicle.
Drawings
Fig. 1 is a schematic structural diagram of a steer-by-wire wheel steering driving assembly according to the technical scheme of the utility model.
Fig. 2 is an exploded view of a steer-by-wire wheel steering drive assembly according to the present utility model.
Fig. 3 is a schematic view of a corner bracket according to the technical scheme of the utility model.
Fig. 4 is a schematic view of a steering knuckle structure in the technical scheme of the utility model.
Fig. 5 is a schematic structural diagram of a steering motor according to the technical scheme of the present utility model.
Fig. 6 is a sectional view of a steering motor according to the present utility model.
Detailed Description
For the convenience of understanding the technical scheme of the present utility model, the technical scheme of the present utility model will be further described with reference to specific examples and drawings in the specification.
As shown in fig. 1 to 6, the steering drive assembly for a steer-by-wire wheel rim according to the technical scheme of the utility model comprises a steering motor 1, a corner bracket 2 and a steering knuckle 3, wherein a wheel rim 10 which needs to be actively steered is arranged on the steering knuckle 3, the steering knuckle 3 is arranged on the corner bracket 2, the corner bracket 2 is connected with the steering motor 1, the steering motor 1 drives the corner bracket 2 to rotate so as to drive the steering knuckle 3 to rotate, namely, the rotation of the driving wheel rim 10 of the steering motor 1 is realized, namely, the active rotation of the driving wheel rim 10 of the steering motor 1 is realized.
To facilitate a further understanding of the drive-by-wire wheel steering drive assembly according to the present utility model, a specific structure of the drive-by-wire wheel steering drive assembly will be described in detail below.
In this embodiment, as shown in fig. 5, the steering motor 1 includes a steering motor body and a steering output shaft 16 extending out of the steering motor body. As shown in fig. 3, the corner bracket 2 includes a corner bracket body 20, a motor connection portion 23 and a first rim connection portion 24 provided on the corner bracket body 20. The motor connecting part 23 is arranged in a vertical state along the axis and is fixedly connected with the steering output shaft 16. The axis of the first wheel edge connecting part 24 is arranged horizontally, and the axis of the motor connecting part 23 is perpendicularly intersected with the axis of the first wheel edge connecting part 24. As shown in fig. 4, the knuckle 3 includes a knuckle body 31, a second wheel-side connection portion 33 provided on the knuckle body 31, and a corner bracket connection portion 32. The corner bracket connecting part 32 is connected with the first wheel edge connecting part 24, namely, the steering knuckle 3 is connected with the corner bracket 2. The second rim connecting portion 33 has an axis parallel to the axis of the first rim connecting portion 24, and the rim 10 is connected to the second rim connecting portion 33, as shown in fig. 1.
Based on the above technical scheme, the steering output shaft 16 of the steering motor 1 is directly connected with the corner bracket 2, the corner bracket 2 is connected with the steering knuckle 3, the wheel edge is installed with the steering knuckle 3, the structure is simple, the steering motor only drives one wheel edge to steer, the structure is compact, the structure of the vehicle chassis is simplified, the use of the front axle is avoided, the height of the vehicle chassis is reduced, and the overall height of the vehicle is reduced. And the adoption of this scheme turns to the moment of torsion direct transfer of output shaft 16 to the wheel, turns to output shaft 16 output angle and just turns to the angle, does benefit to the accurate control to the angle of switching-over, realizes the accurate control to vehicle travel track and route for vehicle autopilot technique is safe and reliable more. The use of this scheme only realizes the connection of steering motor and wheel limit through corner support 2 and knuckle 3, simple structure, and the assembly is reliable, and the assembly requirement is lower, reduces manufacturing and use cost.
In order to further simplify the structure of the corner bracket 2, ensure the strength of the corner bracket 2, reduce the overall height of the drive-by-wire wheel steering drive assembly, and achieve the purpose of reducing the vehicle height, in this scheme, the corner bracket body 20 includes a first bracket 21 and a second bracket 22 fixedly connected as a whole, and a motor connecting portion 23 and a first wheel connecting portion 24 are respectively disposed on the first bracket 21 and the second bracket 22. The second support 22 is arranged in a vertical state, the first support 21 is fixedly connected to the top of the second support 22 and is arranged at an obtuse angle with the second support 22, and the first support 21 is positioned above the steering knuckle 3. The motor connecting part 23 is fixedly connected with the steering output shaft 16, and the steering output shaft 16 drives the corner bracket 2 to rotate around the steering output shaft 16, namely the corner bracket 2 rotates around the axis of the motor connecting part 23 on the self body. The steering knuckle 3 and the wheel rim 10 are arranged below the first bracket 21, so that the height of the drive-by-wire wheel rim steering drive assembly is reduced, and the drive-by-wire wheel rim steering drive assembly is compact in structure.
In this scheme, motor connecting portion 23 sets up in the side that knuckle 3 was kept away from to first support 21, turns to motor 1 body setting in first support 21 top, turns to output shaft 16 and is vertical form setting down and with motor connecting portion 23 rigid coupling, reduces the height that the drive-by-wire wheel was turned to the drive assembly for the drive-by-wire wheel is turned to the drive assembly compact structure.
In this embodiment, the motor connecting portion 23 is a fixed shaft or connecting tube fixedly connected with the first bracket 21, the fixed shaft or connecting tube is coaxially disposed with the steering output shaft 16, and the fixed shaft or connecting tube is fixedly connected with the steering output shaft 16 through a coupling or fixing pin. When the motor connecting part 23 is a fixed shaft, the motor connecting part 23 is fixedly connected with the steering output shaft 16 through a coupler, and when the motor connecting part 23 is a connecting pipe, the steering output shaft 16 is inserted into the connecting pipe and fixedly connected with the steering output shaft 16 through a locating pin.
In this scheme, knuckle body 31 sets up in second support 22 one side and is located first support 21 below and parallel with second support 22, is connected through a plurality of linking arm 4 between second support 22 and the knuckle body 31, and linking arm 4 both ends are connected with first rim connecting portion 24 and corner bracket connecting portion 32 respectively. The steering knuckle body 31 is parallel to the second bracket 22, so that the rotation angle of the second bracket 22 is the angle through which the steering knuckle body 31 rotates, that is, the rotation angle of the second bracket 22 around the steering output shaft 16 is the steering angle of the wheel rim, and the steering angle and the precision of the wheel rim are conveniently controlled.
In this embodiment, the first wheel-side connecting portion 24 includes a plurality of first connecting holes formed on the second bracket 22, and the corner bracket connecting portion 32 includes a plurality of second connecting holes formed on the knuckle body 31. The first connecting hole axis and the second connecting hole axis are parallel and are arranged in a horizontal state and are perpendicular to the motor connecting part 23 axis and the second wheel edge connecting part 33 axis, and two ends of the connecting arm 4 are connected with the first connecting hole and the second connecting hole through connecting shafts respectively. The first connecting hole and the second connecting hole are internally provided with the connecting shafts, two ends of the connecting arm 4 are sleeved on the connecting shafts, the corner support 2 and the knuckle 3 are connected, the connecting structure is simple, the connection is reliable, and the assembly is simple. The connecting arm 4 is connected with the second bracket 22 and the knuckle body 31 through the connecting shaft, so that the rigidity of the connection between the knuckle body 31 and the second bracket 22 is ensured, and the rotation angle of the second bracket 22 is the rotation angle of the knuckle body 31, namely the steering angle of the wheel rim.
In this embodiment, the second rim connecting portion 33 includes a shaft hole provided on the knuckle body 31, the shaft hole axis coincides with the rim 10 axis, the shaft hole is provided with a bearing and a wheel shaft, and the rim 10 is connected with the shaft hole through the wheel shaft and the bearing.
In this scheme, turn to the motor body and include gear box 12 that gear box 11 is connected with gear box 11, be provided with first transmission shaft 13 by gear box 11 drive in the gear box 12, by the second transmission shaft 14 that first transmission shaft 13 drove and by the planetary gear 15 that second transmission shaft 14 drove, turn to output shaft 16 and the sun gear rigid coupling of planetary gear 15 and wear out gear box 12. The steering motor body is compact in structure, high in precision and long in service life, and torque is output through the planetary gear 15.
While the present utility model has been described above by way of example with reference to the embodiments and the accompanying drawings, it is apparent that the specific implementation of the present utility model is not limited by the foregoing, and it is within the scope of the present utility model to apply the inventive concept and technical solution to other situations without any substantial improvement or improvement.
Claims (8)
1. A steer-by-wire wheel-side steering drive assembly, comprising:
a steering motor including a steering motor body and a steering output shaft extending out of the steering motor body;
the steering device comprises a steering angle bracket, a steering shaft and a steering output shaft, wherein the steering angle bracket comprises a steering angle bracket body, a motor connecting part and a first wheel connecting part, the motor connecting part and the first wheel connecting part are arranged on the steering angle bracket body, the axis of the motor connecting part is arranged in a vertical state and is fixedly connected with the steering output shaft, the axis of the first wheel connecting part is arranged in a horizontal state, and the axis of the motor connecting part is vertically intersected with the axis of the first wheel connecting part;
the steering knuckle comprises a steering knuckle body, a second wheel edge connecting part and a corner support connecting part, wherein the second wheel edge connecting part and the corner support connecting part are arranged on the steering knuckle body, the corner support connecting part is connected with the first wheel edge connecting part, the axis of the second wheel edge connecting part is parallel to the axis of the first wheel edge connecting part, and the wheel edge is connected with the second wheel edge connecting part.
2. The drive-by-wire wheel rim steering drive assembly of claim 1, wherein the corner bracket body comprises a first bracket and a second bracket fixedly connected into a whole, and the motor connecting part and the first wheel rim connecting part are respectively arranged on the first bracket and the second bracket; the second support is in a vertical state, the first support is fixedly connected to the top of the second support and is arranged at an obtuse angle with the second support, and the first support is located above the steering knuckle.
3. The steer-by-wire wheel rim steering drive assembly of claim 2, wherein the motor connection is disposed on a side of the first bracket away from the knuckle, the steering motor body is disposed above the first bracket, and the steering output shaft is disposed vertically downward and fixedly connected with the motor connection.
4. A steer-by-wire drive assembly according to claim 2 or 3, wherein the motor connection is a fixed shaft or connecting tube fixedly connected to the first bracket, the fixed shaft or connecting tube is coaxially arranged with the steering output shaft, and the fixed shaft or connecting tube is fixedly connected with the steering output shaft through a coupling or a fixing pin.
5. The drive-by-wire wheel rim steering drive assembly according to claim 2, wherein the steering knuckle body is arranged on one side of the second bracket, is positioned below the first bracket and is parallel to the second bracket, the second bracket is connected with the steering knuckle body through a plurality of connecting arms, and two ends of each connecting arm are respectively connected with the first wheel rim connecting part and the corner bracket connecting part.
6. The drive-by-wire wheel rim steering drive assembly of claim 5, wherein the first wheel rim connecting portion comprises a plurality of first connecting holes arranged on the second bracket, the corner bracket connecting portion comprises a plurality of second connecting holes arranged on the steering knuckle body, the axes of the first connecting holes and the axes of the second connecting holes are parallel and are all arranged in a horizontal state and are all perpendicular to the axes of the motor connecting portion and the axes of the second wheel rim connecting portion, and two ends of the connecting arm are respectively connected with the first connecting holes and the second connecting holes through connecting shafts.
7. The drive-by-wire wheel rim steering drive assembly of claim 1, wherein the second wheel rim connection portion includes a shaft bore provided on the knuckle body, the shaft bore axis coinciding with a wheel rim axis, the wheel rim being connected to the shaft bore by a wheel shaft and a bearing.
8. The drive-by-wire wheel rim steering drive assembly of claim 1, wherein the steering motor body comprises a gear motor, a first transmission shaft driven by the gear motor, a second transmission shaft driven by the first transmission shaft, and a planetary gear driven by the second transmission shaft, and the steering output shaft is fixedly connected with a sun gear of the planetary gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321598529.9U CN220281484U (en) | 2023-06-21 | 2023-06-21 | Drive-by-wire wheel limit turns to drive assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321598529.9U CN220281484U (en) | 2023-06-21 | 2023-06-21 | Drive-by-wire wheel limit turns to drive assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220281484U true CN220281484U (en) | 2024-01-02 |
Family
ID=89338000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321598529.9U Active CN220281484U (en) | 2023-06-21 | 2023-06-21 | Drive-by-wire wheel limit turns to drive assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220281484U (en) |
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2023
- 2023-06-21 CN CN202321598529.9U patent/CN220281484U/en active Active
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