CN114312263B - Motor driving structure and automobile - Google Patents
Motor driving structure and automobile Download PDFInfo
- Publication number
- CN114312263B CN114312263B CN202011063655.5A CN202011063655A CN114312263B CN 114312263 B CN114312263 B CN 114312263B CN 202011063655 A CN202011063655 A CN 202011063655A CN 114312263 B CN114312263 B CN 114312263B
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- motor
- suspension
- automobile
- speed reducer
- swing arm
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- 239000000725 suspension Substances 0.000 claims abstract description 184
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 62
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 abstract description 17
- 230000008859 change Effects 0.000 abstract description 13
- 239000011664 nicotinic acid Substances 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 12
- 239000006096 absorbing agent Substances 0.000 description 9
- 230000035939 shock Effects 0.000 description 9
- 230000009191 jumping Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention relates to the technical field of automobile driving, and discloses a motor driving structure and an automobile, wherein the motor driving structure comprises a motor, a suspension assembly and a speed reducer which is connected with an automobile hub and is hinged with a lower swing arm of an automobile suspension; the speed reducer drives the automobile hub to rotate under the drive of the motor; the motor is hinged on the lower swing arm of the automobile suspension through the suspension assembly, and the lower swing arm of the automobile suspension and the suspension assembly form a force transmission channel between the automobile hub and the motor; when the automobile hub is impacted, the angle of the output shaft of the motor and the relative displacement between the motor and the automobile hub are adjusted through the force transmission channel. The suspension assembly can drive the motor to follow the swing of the lower swing arm of the automobile suspension to change the angle of the output shaft of the motor and the relative displacement between the motor and the automobile hub, thereby meeting different movement requirements.
Description
Technical Field
The invention relates to the technical field of automobile driving, in particular to a motor driving structure and an automobile.
Background
The motor is as the important part that the drive car was gone, and its drive structure is very important, and motor drive structure among the prior art, motor pass through trailing arm and reduction gear and are directly connected with wheel hub to drive wheel hub rotates, and wherein, motor and reduction gear are directly fixed on the automobile body, and when automobile wheel hub received the impact, the motor is motionless, can't satisfy the motion demand under the different circumstances. In addition, the motor and the speed reducer assembly are directly fixed with the vehicle body, motor vibration cannot be effectively isolated, and the vibration of the whole vehicle can be possibly caused.
Disclosure of Invention
The embodiment of the invention provides a motor driving structure and an automobile, which solve the problems that the motor driving structure in the prior art cannot meet the movement requirement and the like.
The embodiment of the invention provides a motor driving structure, which comprises a motor, a suspension assembly and a speed reducer, wherein the speed reducer is connected with an automobile hub and hinged with a lower swing arm of an automobile suspension; the speed reducer drives the automobile hub to rotate under the drive of the motor; the motor is hinged on the lower swing arm of the automobile suspension through the suspension assembly;
the lower swing arm of the automobile suspension and the suspension assembly form a force transmission channel between an automobile hub and the motor; when the automobile hub is impacted, the angle of the output shaft of the motor and the relative displacement between the motor and the automobile hub are adjusted through the force transmission channel.
Optionally, the suspension assembly comprises a first suspension; one end of the first suspension piece is arranged on the lower swing arm of the automobile suspension, and the other end of the first suspension piece is flexibly connected with the motor.
Optionally, the suspension assembly further comprises a second suspension; one end of the second suspension piece is arranged on an automobile auxiliary frame hinged with the lower swing arm of the automobile suspension, and the other end of the second suspension piece is flexibly connected with the motor.
Optionally, the first suspension is provided with two; the second suspension member and the two first suspension members form a three-point suspension structure for supporting the motor.
Optionally, the first suspension is located on a side of the motor close to the decelerator.
Optionally, the motor driving structure further comprises a first half shaft, one end of the first half shaft is rotationally connected with the speed reducer, and the other end of the first half shaft is rotationally connected with the motor; the motor drives the speed reducer to drive the automobile hub to rotate through the first half shaft.
Optionally, the speed reducer comprises a housing and a gear ring and a sun gear mounted in the housing; the sun gear is connected with the first half shaft; the gear ring is connected with the input end of the automobile hub; the motor driving structure further comprises a steering knuckle rotationally connected with the input end of the automobile hub; the shell is hinged with the lower swing arm of the automobile suspension through the knuckle.
Optionally, one end of the first half shaft is connected with the motor through a first spline and a first universal joint, and the other end of the first half shaft is connected with the speed reducer through a second spline and a second universal joint.
Optionally, the motor driving structure further comprises a second half shaft connected with the speed reducer, and the motor is connected with the speed reducer; the speed reducer drives the automobile hub to rotate through the second half shaft under the drive of the motor.
The invention also provides an automobile comprising the motor driving structure.
The invention provides a motor driving structure and an automobile, which comprise a motor, a suspension assembly and a speed reducer, wherein the speed reducer is connected with an automobile hub and hinged with a lower swing arm of an automobile suspension; the speed reducer drives the automobile hub to rotate under the drive of the motor; the motor is hinged on the lower swing arm of the automobile suspension through the suspension assembly, and the lower swing arm of the automobile suspension and the suspension assembly form a force transmission channel between the automobile hub and the motor; therefore, when the automobile is accelerated, decelerated, turned or passes through the undulating road surface, the automobile hub is impacted, relative motion is generated between the automobile hub and the motor under the action of the impact force, at the moment, the output shaft angle of the motor and the relative displacement between the motor and the automobile hub are adjusted through the force transmission channel (namely, when the automobile hub is impacted, the automobile suspension swings, the suspension assembly drives the motor to swing along with the swing of the swing arm under the automobile suspension so as to generate the change of the angle of the output shaft of the motor and the change of the relative displacement between the motor and the automobile hub), and different motion requirements are met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a motor driving structure according to an embodiment of the present invention.
Reference numerals in the specification are as follows:
1. A motor; 2. a suspension assembly; 21. a second suspension; 22. a first suspension member; 3. a speed reducer; 31. a housing; 32. a gear ring; 33. a sun gear; 4. an automobile hub; 5. lower swing arms of automotive suspensions; 6. an automobile auxiliary frame; 7. a first half shaft; 8. a knuckle; 9. and a hub bearing.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a motor 1 driving structure, as shown in figure 1, which comprises a motor 1, a suspension assembly 2 and a speed reducer 3 connected with an automobile hub 4 and hinged with an automobile suspension lower swing arm 5; the speed reducer 3 drives the automobile hub 4 to rotate under the drive of the motor 1; the motor 1 is hinged on the lower swing arm 5 of the automobile suspension through the suspension assembly 2 (understandably, in one embodiment, the speed reducer 3 comprises a shell 31, a gear ring 32 and a sun gear 33 which are arranged in the shell 31, the sun gear 33 is connected with the first half shaft 7, the gear ring 32 is connected with the input end of the automobile hub 4, the driving structure of the motor 1 also comprises a knuckle 8 which is rotatably connected with the input end of the automobile hub 4, and the shell 31 is hinged with the lower swing arm 5 of the automobile suspension through the knuckle 8); the automobile suspension lower swing arm 5 and the suspension assembly 2 form a force transmission channel between an automobile hub 4 and the motor 1; when the automobile hub 4 is impacted, the angle of the output shaft of the motor 1 and the relative displacement between the motor 1 and the automobile hub 4 are adjusted through the force transmission channel.
The motor 1 is hinged on the lower swing arm 5 of the automobile suspension through the suspension component 2, and the lower swing arm 5 of the automobile suspension and the suspension component 2 form a force transmission channel between the automobile hub 4 and the motor 1; it is understood that when the automobile is accelerated, decelerated, turned or passed over a rough road, the automobile hub 4 is impacted, the damper jumps and the lower swing arm 5 swings with it, and the relative motion between the automobile hub 4 and the motor 1 will occur under the impact, at this time, the output shaft angle of the motor 1 and the relative displacement between the motor 1 and the automobile hub 4 are adjusted by the force transmission channel, that is, the motor 1 of the present invention may be driven by the suspension assembly 2, along with the swing arm angle of the swing arm 5 of the automobile suspension, and adaptively change the output shaft angle of the motor 1 and the relative displacement between the motor 1 and the automobile hub 4, so that the motor 1 has a larger motion stroke relative to the automobile hub 4 (compared with the driving structure of the motor 1 without the force transmission channel, the force transmission channel of the present invention can compensate the offset angle and offset displacement of the relative motion between the motor 1 and the automobile hub 4, thus, so that the motion stroke between the two has a larger motion stroke), and the different motion requirements are not satisfied, and the jump momentum of the vibration damper is increased.
In one embodiment, as shown in FIG. 1, the suspension assembly 2 includes a first suspension 22; one end of the first suspension member 22 is mounted on the lower swing arm 5 of the automobile suspension, and the other end of the first suspension member 22 is flexibly connected to the motor 1. It will be appreciated that in embodiments, the first suspension member 22 may be provided in one or more, that is, the suspension assembly 2 includes only one or more first suspension members 22 connected between the motor 1 and the lower swing arm 5 of the vehicle suspension, the first suspension member 22 includes a flexible connection point and connection members connected at both ends of the flexible connection point, and the connection members at both ends of the flexible connection point may rotate and move relatively within a constraint range as required for vibration reduction, so that the suspension assembly 2 may swing along with the lower swing arm 5 of the vehicle suspension to change the output shaft angle of the motor 1 and the relative displacement between the motor 1 and the vehicle hub 4.
Further, the suspension assembly 2 further comprises a second suspension 21; one end of the second suspension member 21 is mounted on the automobile auxiliary frame 6 hinged with the automobile suspension lower swing arm 5, and the other end of the second suspension member 2 is flexibly connected with the motor 1, in other words, the second suspension member 2 is hinged with the automobile suspension lower swing arm 5 through the automobile auxiliary frame 6. In the present embodiment, the suspension assembly 2 is provided with a second suspension member 21 in addition to the first suspension member 22; that is, in this embodiment, the second suspension member 21 is attached to the sub-frame 6 of the automobile, the first suspension member 22 is attached to the lower swing arm 5 of the suspension of the automobile, and both the second suspension member 21 and the first suspension member 22 are connecting members including flexible connection points and connected to both ends of the flexible connection points, so that the connecting members at both ends of the flexible connection points can be relatively rotated and moved within a constraint range due to the need for vibration reduction. When the automobile is accelerated, decelerated, turned or passes through a rough road, the automobile hub 4 is impacted, the shock absorber jumps and the lower swing arm 5 of the automobile suspension swings along with the shock absorber, the motor 1 can be driven by the second suspension piece 21 and the first suspension piece 22 to accompany the swinging arm angle of the lower swing arm 5 of the automobile suspension, the angle of the output shaft of the motor 1 and the relative displacement between the motor and the automobile hub 4 are adaptively changed, and the allowable jumping quantity of the shock absorber is increased while different movement requirements are met. Meanwhile, in the embodiment, the motor 1 is independently installed at the position of the auxiliary frame through the suspension assembly 2 (the second suspension piece 21 is connected to the auxiliary frame 6 of the automobile, the first suspension piece 22 is connected to the lower swing arm 5 of the automobile suspension), compared with a hub motor in which the motor and the speed reducer are both arranged on a hub, part of the mass of the motor is borne by the auxiliary frame 6 of the automobile and the lower swing arm 5 of the automobile suspension, so that unsprung mass is reduced, and the control performance of the automobile is improved; at the same time, the supporting weight of the suspension assembly 2 is reduced, and the durability thereof is improved. It is understood that when the motor 1 is connected to the vehicle subframe 6 via the second suspension element 21, both the first suspension element 22 and the second suspension element 21 belong to the force transmission channel.
Further, the first suspension 22 in this embodiment is provided as one or more according to the need; optionally, the first suspension 22 is provided with two; the second suspension 21 and the two first suspensions 22 constitute a three-point suspension structure for supporting the motor 1. In this embodiment, the motor 1 is stably supported on the automobile sub-frame 6 and the automobile suspension lower swing arm 5 by a three-point suspension structure, and moves or changes the output shaft angle following the swing of the automobile suspension lower swing arm 5.
In the embodiment shown in fig. 1, the first suspension 22 is arranged on the side of the motor 1 close to the reduction gear and the second suspension 21 is arranged on the side of the motor 1 remote from the reduction gear.
It is to be understood that, in the present invention, since it is necessary to make the suspension assembly 2 follow the change of the output shaft angle of the motor 1 and the relative displacement between the motor 1 and the vehicle hub 4 accompanying the swing of the vehicle suspension lower swing arm 5, the first suspension member 22 may be provided in one or more, but the suspension assembly 2 may not be provided with the second suspension member 21, that is, the suspension assembly 2 may include only one or more first suspension members 22 connected between the motor 1 and the vehicle suspension lower swing arm 5.
In one embodiment, the suspension assembly 2 includes a third suspension (not shown) and a bionic mechanism (not shown) mounted on the lower swing arm 5 of the automotive suspension; the motor 1 is hinged on the bionic mechanism through the third suspension piece. The third suspension piece comprises a flexible connection point and connecting pieces connected to two ends of the flexible connection point, so that the connecting pieces at two ends of the flexible connection point can rotate and move relatively in a constraint range due to vibration reduction. In this embodiment, the bionic mechanism refers to a bracket or cage-like structure that can support the motor 1 and the third suspension on the lower swing arm 5 of the automotive suspension; the motor 1 is mounted on the bionic mechanism through a third suspension and hinged with the bionic mechanism. In this embodiment, when the automobile is accelerated, decelerated, turned or passes through a rough road, the automobile hub 4 is impacted, the shock absorber jumps, the lower swing arm 5 of the automobile suspension swings along with the shock absorber, and then the bionic mechanism is driven to move, the motor 1 can be driven by the third suspension part to move along with the bionic mechanism, the angle of the output shaft of the motor 1 and the relative displacement between the motor 1 and the automobile hub 4 are adaptively changed, and then the allowable jumping quantity of the shock absorber is increased while different movement requirements are met.
Optionally, the bionic mechanism comprises a first bionic support (not shown) and a second bionic support (not shown), wherein the number of the first bionic support and the second bionic support can be set according to requirements; the first bionic support piece is connected between the third suspension piece and the automobile suspension lower swing arm 5, and the second bionic support piece is connected between the third suspension piece and the automobile auxiliary frame 6. In this embodiment, the motor 1 and the third suspension are stably supported on the automobile sub-frame 6 and the automobile suspension lower swing arm 5 by the first and second bionic supports, and the motor 1 moves or changes the output shaft angle following the swing of the automobile suspension lower swing arm 5.
In an embodiment, the driving structure of the motor 1 further includes a first half shaft 7, one end of the first half shaft 7 is rotatably connected with the speed reducer 3, and the other end of the first half shaft 7 is rotatably connected with the motor 1; the motor 1 drives the speed reducer 3 to drive the automobile hub 4 to rotate through the first half shaft 7. Specifically, the first half shaft 7 is connected with the output shaft of the motor, in this embodiment, during the running of the automobile, the driving force of the motor 1 is transmitted to the speed reducer 3 through the first half shaft 7 and drives the automobile to advance through the automobile hub 4, in this embodiment, in the connection mode among the speed reducer 3, the first half shaft 7 and the motor 1, the motor 1 is separated from the speed reducer 3, the assembly quality of the motor 1 is reduced, the supporting weight of the suspension assembly 2 is reduced (only the motor 1 needs to be supported), the durability is improved, and better vibration isolation capability can be obtained; meanwhile, the driving requirement of the motor 1 on the whole driving structure of the motor 1 can be reduced, and larger driving torque can be provided. In the embodiment, the motor 1 and the speed reducer 3 are respectively arranged at different positions; that is, the speed reducer 3 is located at the position of the automobile hub 4, the motor 1 is mounted on the automobile suspension lower swing arm 5 through the suspension assembly 2 (in some embodiments, the motor 1 is mounted on the automobile suspension lower swing arm 5 and the automobile auxiliary frame 6 through the suspension assembly 2), and the two are connected through the first half shaft 7, so that unsprung mass can be effectively reduced, and the automobile steering performance can be improved; the motor 1 of the embodiment has good working environment, compact driving structure of the motor 1 and small influence on a suspension system.
Preferably, one end of the first half shaft 7 is connected to the motor 1 through a first spline (not shown) and a first universal joint, and the other end of the first half shaft 7 is connected to the speed reducer 3 through a second spline (not shown) and a second universal joint. Alternatively, both the first universal joint and the second universal joint may be set as a center fixed type constant velocity universal joint or a slidable type constant velocity universal joint according to the requirements (determined according to the amount of the yaw angle and the amount of the slip of the first half shaft 7). The first spline and the second spline are ball splines. That is, the housing of the speed reducer 3 is fixedly coupled to the automobile hub 4, and the speed reducer 3 and the motor 1 are connected to the first half shaft 7 by ball spline and universal joint (center fixed type constant velocity universal joint or slidable type constant velocity universal joint).
Understandably, when the automobile is accelerated, decelerated, turned or passes through a rough road, the automobile hub 4 is impacted, the shock absorber jumps and the lower swing arm 5 of the automobile suspension swings along with the shock absorber, and at the moment, the first universal joint and the second universal joint at the two ends of the first half shaft 7 can provide the required offset angle and offset displacement between the automobile hub 4 and the motor 1 according to the impact received by the automobile hub; meanwhile, through the force transmission channel, offset angle and offset displacement compensation can be carried out on the relative motion between the motor 1 and the automobile hub 4 (namely, the motor 1 can be driven by the suspension assembly 2 to adaptively change the angle of an output shaft of the motor 1 and the relative displacement between the motor 1 and the automobile hub 4 along with the swing angle of the swing arm 5 under the automobile suspension), namely, the suspension assembly 2 can carry out supplementary adjustment on the slip quantity and the swing angle quantity generated by the first half shaft 7 relative to the motor 1 and the speed reducer 3, the swing angle quantity and the slip quantity requirement of the first half shaft 7 can be reduced, the speed reducer 3 is allowed to have larger motion stroke, and the allowable jump quantity of the shock absorber is increased while different motion requirements are met.
In one embodiment, as shown in fig. 1, the speed reducer 3 includes a housing 31, and a ring gear 32 and a sun gear 33 mounted in the housing 31; the sun gear 33 is connected to the first half shaft 7; the gear ring 32 is connected with the input end of the automobile hub 4; the motor 1 driving structure further comprises a knuckle 8 rotatably connected to the input end of the automobile hub 4 (the knuckle 8 is mounted on the automobile body by a suspension structure, which is not shown in fig. 1); the housing 31 is hinged with the lower swing arm 5 of the automobile suspension through the knuckle 8. Specifically, the knuckle 8 is connected to the outer race of the hub bearing 9 of the automobile hub 4, and the knuckle 8 and the automobile hub 4 are relatively freely rotatable. The speed reducer 3 in the present embodiment is a planetary gear mechanism, the first half shaft 7 connects the speed reducer 3 and the motor 1, the motor 1 transmits the driving force of the motor 1 to the sun gear 33 (the sun gear 33 is used as the input shaft of the speed reducer 3) through the first half shaft 7, and then the automobile hub 4 is driven to rotate through the gear ring 32 (the gear ring 32 is used as the output shaft of the speed reducer 3).
In an embodiment, the motor 1 driving structure further comprises a second half shaft connected with the speed reducer 3, and the motor 1 is connected with the speed reducer 3; the speed reducer 3 drives the automobile hub 4 to rotate through the second half shaft under the drive of the motor 1. In this embodiment, the motor 1 and the speed reducer 3 in the driving structure of the motor 1 may be directly integrated according to the requirement (two second half shafts are disposed at two ends of the speed reducer 3 and connected with the automobile hub 4), at this time, the speed reducer 3 may be a planetary gear mechanism or a parallel shaft gear mechanism, and the gear of the speed reducer 3 may be one gear or multiple gears. At this time, in some embodiments of the present invention, the suspension assembly 2 directly supports the integrated body of the motor 1 and the decelerator 3, and in other embodiments, the suspension assembly 2 is only used for supporting the motor 1, and the motor 1 driving mechanism further includes a suspension device connected to the decelerator 3, which is separately used for fixedly supporting the decelerator 3.
To facilitate an understanding of the above-described embodiments of the present invention, the embodiment of fig. 1 is specifically described with reference to the following embodiments: the input shaft of the sun gear 33 of the speed reducer 3 is connected with the first half shaft 7, the gear ring 32 of the speed reducer 3 is used as an output shaft to be connected with the automobile hub 4, the first half shaft 7 is driven by the motor 1 to rotate, and the speed reducer 3 drives the automobile hub 4 to rotate; the knuckle 8 is mounted on the car body through a suspension structure not shown in fig. 1, and the knuckle 8 is hinged with the lower swing arm 5 of the car suspension, the car hub 4 is rotationally connected with the knuckle 8 through a hub bearing 9, a shell 31 (comprising a planet carrier) of the speed reducer 3 is fixedly mounted on the knuckle 8, the car subframe 6 is hinged with the lower swing arm 5 of the car suspension, and finally, the car hub 4, the knuckle 8 and the shell 31 of the speed reducer 3 translate up and down and swing around the hinge point of the car subframe 6 and the lower swing arm 5 of the car suspension, and the car hub 4, the first half shaft 7 and the internal reduction gear of the speed reducer 3 rotate.
One end of the second suspension 21 in fig. 1 is mounted on the sub-frame 6 of the car, and the other end is connected to the motor 1; and one end of the two first suspension members 22 is mounted on the lower swing arm 5 of the automobile suspension, and the other end is connected with the motor 1. The second suspension member 21 and the first suspension member 22 each include a flexible connection point and connection members connected to both ends of the flexible connection point, so that the connection members at both ends of the flexible connection point can be relatively rotated and moved within a constraint range due to the need for vibration reduction.
The first half shaft 7 is a rigid shaft with variable length, and two ends of the first half shaft are respectively provided with a first universal joint and a second universal joint, so that torque is transmitted between two rotating parts (two rotating parts with an output shaft of the motor 1 and an input shaft of the automobile hub 4 being different), when the relative position of the automobile hub 4 and the motor 1 changes, the first half shaft 7 can generate length change (i.e. slippage) and angle change (i.e. swing angle) with the universal joints, but the range of the length change and the angle change of the first half shaft 7 is limited; at this time, the motor 1 is mounted on the auxiliary frame 6 of the automobile and the lower swing arm 5 of the automobile suspension through the suspension assembly 2, when the automobile hub 4 is drawn to impact and the position changes, the swing arm angle of the lower swing arm 5 of the automobile suspension also changes, at this time, the motor 1 also changes synchronously with the lower swing arm 5 of the automobile suspension under the drive of the suspension assembly 2 (similar to a parallelogram structure), thus, the length change of the first half shaft 7 (namely, the sliding amount representing the elongation of the first half shaft 7) and the angle change between the first half shaft 7 and the universal joint (namely, the swing angle amount) are reduced, namely, the motor 1 can be driven by the second suspension 21 and the first suspension 22, the swing arm angle of the swing arm 5 of the automobile suspension is accompanied, the output shaft angle of the motor 1 and the relative displacement between the motor and the automobile hub 4 are adaptively changed, and then the sliding amount and the swing angle amount generated by the first half shaft 7 relative to the motor 1 and the speed reducer 3 are complementarily adjusted, so that the swing angle amount and the sliding amount requirement of the first half shaft 7 can be reduced, and the speed reducer 3 can have larger movement requirements, and the allowable vibration reduction amount of the speed reducer 3 can be further increased.
The invention also provides an automobile comprising the motor driving structure.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (9)
1. The motor driving structure is characterized by comprising a motor, a suspension assembly and a speed reducer which is connected with an automobile hub and hinged with a lower swing arm of an automobile suspension; the speed reducer drives the automobile hub to rotate under the drive of the motor; the motor is hinged on the lower swing arm of the automobile suspension through the suspension assembly;
The lower swing arm of the automobile suspension and the suspension assembly form a force transmission channel between an automobile hub and the motor; when the automobile hub is impacted, the angle of an output shaft of the motor and the relative displacement between the motor and the automobile hub are adjusted through the force transmission channel;
The motor driving structure further comprises a first half shaft, one end of the first half shaft is rotationally connected with the speed reducer, and the other end of the first half shaft is rotationally connected with the motor; the motor drives the speed reducer to drive the automobile hub to rotate through the first half shaft.
2. The motor drive of claim 1, wherein the suspension assembly comprises a first suspension member; one end of the first suspension piece is arranged on the lower swing arm of the automobile suspension, and the other end of the first suspension piece is flexibly connected with the motor.
3. The motor drive structure of claim 2, wherein the suspension assembly further comprises a second suspension; one end of the second suspension piece is arranged on an automobile auxiliary frame hinged with the lower swing arm of the automobile suspension, and the other end of the second suspension piece is flexibly connected with the motor.
4. A motor drive structure according to claim 3, wherein the first suspension member is provided with two; the second suspension member and the two first suspension members form a three-point suspension structure for supporting the motor.
5. The motor drive of claim 4, wherein the first suspension is located on a side of the motor proximate the decelerator.
6. The motor drive structure according to claim 1, wherein the speed reducer includes a housing and a ring gear and a sun gear mounted in the housing; the sun gear is connected with the first half shaft; the gear ring is connected with the input end of the automobile hub; the motor driving structure further comprises a steering knuckle rotationally connected with the input end of the automobile hub; the shell is hinged with the lower swing arm of the automobile suspension through the knuckle.
7. The motor drive of claim 1, wherein one end of the first half shaft is connected to the motor via a first spline and a first universal joint, and the other end of the first half shaft is connected to the reduction gear via a second spline and a second universal joint.
8. The motor drive structure according to any one of claims 1 to 5, further comprising a second half shaft connected to the speed reducer, the motor being connected to the speed reducer; the speed reducer drives the automobile hub to rotate through the second half shaft under the drive of the motor.
9. An automobile comprising the motor drive structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011063655.5A CN114312263B (en) | 2020-09-30 | Motor driving structure and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011063655.5A CN114312263B (en) | 2020-09-30 | Motor driving structure and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114312263A CN114312263A (en) | 2022-04-12 |
| CN114312263B true CN114312263B (en) | 2024-07-16 |
Family
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887058A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Speed reducing type electric drive system in integrated McPherson hanger bracket wheel |
| CN203766484U (en) * | 2014-02-07 | 2014-08-13 | 同济大学 | Integrated Macpherson suspension wheel rim electric driving system for steering wheel |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887058A (en) * | 2012-10-15 | 2013-01-23 | 同济大学 | Speed reducing type electric drive system in integrated McPherson hanger bracket wheel |
| CN203766484U (en) * | 2014-02-07 | 2014-08-13 | 同济大学 | Integrated Macpherson suspension wheel rim electric driving system for steering wheel |
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