CN214420156U - Suspension structure for driving steering wheel by hub motor and electric vehicle - Google Patents
Suspension structure for driving steering wheel by hub motor and electric vehicle Download PDFInfo
- Publication number
- CN214420156U CN214420156U CN202023152670.5U CN202023152670U CN214420156U CN 214420156 U CN214420156 U CN 214420156U CN 202023152670 U CN202023152670 U CN 202023152670U CN 214420156 U CN214420156 U CN 214420156U
- Authority
- CN
- China
- Prior art keywords
- control arm
- frame
- wheel
- knuckle
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vehicle Body Suspensions (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model discloses a suspension structure and electric motor car for in-wheel motor drive directive wheel, including frame, knuckle, in-wheel motor, control arm, a steering system, spring damping system, the motor shaft of in-wheel motor is connected with the knuckle, and one end of control arm is articulated with the knuckle, and the other end is articulated with the frame, and the steering system includes steering engine, tie rod, and tie rod one end is connected through the ball pivot with the knuckle, and the other end is connected with the steering engine; the spring damping system comprises a pull rod, a winch and a shock absorber, the winch is hinged to the frame, one end of the pull rod is hinged to the control arm, the other end of the pull rod is hinged to the winch, one end of the shock absorber is connected with the frame, the other end of the shock absorber is hinged to the winch, and the shock absorber is transversely arranged along the frame. The utility model discloses can greatly reduce suspension king pin offset and the radius of tyre abrasion, guarantee that wheel alignment parameter changes at reasonable within range, improve the maneuverability and the stability of vehicle to through the reasonable conversion of capstan winch, improve the transmission ratio of suspension.
Description
Technical Field
The utility model relates to a new energy automobile technical field, concretely relates to suspension system suitable for in-wheel motor drive directive wheel.
Background
New energy electric vehicles are highly regarded by various countries as one of the main directions for future development of the automobile industry. The hub motor driving technology has the most development potential in the core key technology of the electric automobile, and the distributed driving electric automobile is produced along with the continuous development of the motor and battery technology. The distributed driving has high transmission efficiency, accurate and rapid driving/braking response, is easy to realize the integration of the chassis technology, is beneficial to improving the maneuverability and the stability of the vehicle, and has wide development prospect. But because in-wheel space has been occupied to in-wheel motor, has greatly influenced arrangement such as knuckle, brake disc, calliper, if simply with front suspension to automobile body direction translation, then can lead to king pin axis position to move inwards, increase king pin offset and tire wear radius for vehicle steering moment grow, appear moment of torsion and turn to, the braking stability scheduling problem, influence vehicle stability of traveling. In addition, the conventional suspension with a low chassis has the problem that the transmission ratio is too small.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a suspension structure for in-wheel motor drive directive wheel is provided, solve traditional suspension system and in-wheel motor collocation mode and lead to the wheel alignment parameter to change too big, influence vehicle maneuverability and stability to and the suspension system on low chassis, the problem of suspension drive ratio undersize.
In order to solve the technical problem, the utility model adopts the following technical scheme: a suspension structure for a wheel hub motor driving steering wheel comprises a frame, a steering knuckle, a wheel hub motor, a control arm, a steering system and a spring damping system, wherein a motor shaft of the wheel hub motor is connected with the steering knuckle, one end of the control arm is hinged with the steering knuckle, the other end of the control arm is hinged with the frame, the steering system comprises a steering machine and a steering tie rod, one end of the steering tie rod is connected with the steering knuckle through a ball hinge, and the other end of the steering tie rod is connected with the steering machine; the spring damping system comprises a pull rod, a winch and a shock absorber, the winch is hinged to the frame, one end of the pull rod is hinged to the control arm, the other end of the pull rod is hinged to the winch, one end of the shock absorber is connected with the frame, the other end of the shock absorber is hinged to the winch, and the shock absorber is transversely arranged along the frame.
Preferably, the control arm comprises an upper control arm above and a lower front control arm and a lower rear control arm below, which are arranged in parallel front and back, the upper control arm, the lower front control arm and the lower rear control arm are all connected with the steering knuckle through spherical hinges and hinged with the frame through a horizontal pin shaft, so that the upper control arm, the lower front control arm and the lower rear control arm can rotate up and down.
Preferably, the upper control arm is provided with a spherical hinge part connected with the steering knuckle and two forked branch support arms extending from the spherical hinge part to the direction of the frame, and the end parts of the branch support arms are hinged with the frame through a horizontal pin shaft.
Preferably, the upper portion of the knuckle is provided with an upper extension portion extending towards the direction of the hub, and the upper extension portion is provided with an upper control ball mounting hole for mounting a ball joint connected with an upper control arm.
Preferably, the lower part side of knuckle is equipped with outside extension downwardly extending, downwardly extending is equipped with the tie rod bulb mounting hole that is used for installing the ball pivot of being connected with the tie rod, be equipped with down preceding control arm bulb mounting hole, lower back control arm bulb mounting hole around the bottom surface of knuckle side by side, be used for respectively installing the ball pivot of being connected with lower preceding control arm and the ball pivot of being connected with lower back control arm.
Preferably, the lower front control arm ball mounting hole and the lower rear control arm ball mounting hole have a height difference.
Preferably, the middle position of the lower part of the steering knuckle is provided with a hub motor shaft mounting hole and a hub motor mounting end surface arranged around the hub motor shaft mounting hole, the hub motor shaft is supported in the hub motor shaft mounting hole and locked and fixed by a hub motor locking nut, and the hub motor locking nut is matched with the hub motor mounting end surface in a positioning manner.
Preferably, the winch is of a triangular structure, wherein a top corner part is hinged to the frame, and two bottom corner parts are respectively hinged to the pull rod and the shock absorber.
Preferably, the winch is connected to the frame by a needle bearing.
The utility model also provides an electric motor car, include a suspension structure for in-wheel motor drive directive wheel.
The utility model adopts the above technical scheme, following beneficial effect has:
through the steering and suspension system with reasonable design, the offset distance of the suspension kingpin and the radius of the worn tire can be greatly reduced, the change of wheel alignment parameters in a reasonable range is ensured, and the maneuverability and the stability of the vehicle are improved.
The bumper shock absorber can effectively keep apart the jolting on road surface, reduces the vertical motion of automobile body, guarantees that the vehicle goes stably, and the shock absorber's the form of arranging is put by traditional slant and is changed into the level and arrange moreover, can greatly reduce chassis height. Through the reasonable conversion of capstan winch, improve the transmission ratio of suspension, reduce the rigidity of bumper shock absorber spring, and then reduce spring weight, higher transmission ratio simultaneously also can increase the stroke of bumper shock absorber, and then improves spring damping system's efficiency.
The specific technical solution and the advantages of the present invention will be described in detail in the following detailed description with reference to the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic view of the overall structure of the suspension assembly of the present invention;
fig. 2 is a schematic structural view of a suspension part in the present invention;
FIG. 3 is a schematic view of a portion of a knuckle according to the present invention;
FIG. 4 is a schematic view of a part of the structure of the hub motor of the present invention;
fig. 5 is a schematic view of the suspension king pin axis of the present invention;
in the figure: 1-lower rear control arm, 2-lower front control arm, 3-knuckle, 4-brake disc, 5-in-wheel motor, 6-tire, 7-upper control arm, 8-tie rod, 9-tie rod, 10-frame, 11-steering gear, 12-shock absorber, 13-winch, 101-lower rear control arm bushing, 102-lower rear control arm ball, 111-lower rear control arm bushing mounting hole, 121-lower rear ball point, 201-lower front control arm bushing, 202-lower front control arm ball, 211-lower front control arm bushing mounting hole, 221-lower front ball point, 311-upper control ball mounting hole, 312-lower rear control arm ball mounting hole, 313-lower front control arm ball mounting hole, 314-in-wheel motor mounting end face, 315-hub motor shaft mounting hole, 316-steering tie rod ball mounting hole, 501-hub bolt, 502-hub motor lock nut, 511-brake disc mounting hole, 512-hub motor shaft, 701-upper control ball, 702-upper control front bushing, 703-upper control arm rear bushing, 711-upper control arm bushing front mounting hole, 712-upper control arm bushing rear mounting hole, 713-tie rod mounting hole, 721-upper control arm outer ball point, 1211-shock absorber frame mounting hole, 1311-winch tie rod mounting hole, 1312-winch shock absorber mounting hole, 1313-winch frame mounting hole, 1401-kingpin axis, 1402-virtual lower control arm outer ball point.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "front," "rear," "lateral," and the like, which indicate orientation or positional relationships, are used solely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
Example one
As shown in fig. 1, a suspension structure for a wheel hub motor-driven steering wheel comprises a frame 10, a steering knuckle 3, a wheel hub motor 5 mounted on a wheel hub, a control arm, a steering system, a spring damping system, a brake disc 4 and a tire 6 mounted on the wheel hub.
The hub motor shaft 512 is connected with the steering knuckle 3, one end of the control arm is hinged with the steering knuckle 3, and the other end of the control arm is hinged with the frame 10. The steering system comprises a steering engine 11 and a steering tie rod 9, wherein one end of the steering tie rod 9 is connected with the steering knuckle 3 through a spherical hinge, and the other end of the steering tie rod 9 is connected with the steering engine 11.
Specifically, the control arm includes upper control arm 7 and the lower preceding control arm 2 and lower back control arm 1 that parallel arrangement around the below of upper control arm 7 and the below, upper control arm 7, preceding control arm 2 and lower back control arm 1 all pass through the ball pivot with knuckle 3 and are connected, consequently can realize a plurality of direction activities, and articulated through the horizontal pin axle with the frame simultaneously to but make upper control arm 7, preceding control arm 2 and lower back control arm 1 tilting. The upper control arm 7 is provided with a spherical hinge part connected with the steering knuckle 3 and two forked support arms extending from the spherical hinge part to the direction of the frame, and the end parts of the forked support arms are hinged with the frame 10 through a horizontal pin shaft.
When the EPS motor works, the rotation of the motor shaft is converted into linear motion through the rack-and-pinion structure of the steering gear 11, and the rack drives the tie rod 9, as shown in fig. 5, to control the wheel to rotate around the kingpin axis 1401. The kingpin axis 1401 here is a straight line defined by the intersection of the extension lines of the lower front control arm 2 and the lower rear control arm 1 (passing through the lower front ball point 221 and the lower rear ball point 121, respectively) (i.e., the virtual lower control arm outer ball point 1402) and the upper control arm outer ball point 721.
Above technical scheme, through the steering and suspension system of rational design, specifically be through the reasonable design with control arm outer bulb point 1402 position under the virtual move towards the wheel inboard, can greatly reduce suspension king pin offset and tire buffing radius, guarantee that wheel alignment parameter changes in reasonable scope, improve the maneuverability and the stability of vehicle.
As shown in fig. 3, the upper portion of the knuckle 3 is provided with an upper extension portion extending in the hub direction, and the upper extension portion is provided with an upper control ball mounting hole 311 for mounting a ball joint connected to the upper control arm 7. The lower part side of knuckle 3 is equipped with outside extension downwardly extending, downwardly extending is equipped with and is used for installing the steering linkage bulb mounting hole 316 with the ball pivot that tie rod 9 is connected, be equipped with down preceding control arm bulb mounting hole 313, lower back control arm bulb mounting hole 312 around the bottom surface of knuckle side by side, be used for the ball pivot that the ball pivot of being connected with preceding control arm 2 down and the ball pivot that back control arm 1 is connected down respectively. And a hub motor shaft mounting hole 315 and a hub motor mounting end surface 314 arranged around the hub motor shaft mounting hole 315 are arranged in the middle of the lower part of the steering knuckle 3.
Referring to fig. 3 and 4, the in-wheel motor shaft 512 is supported by the in-wheel motor shaft mounting hole 315 and is locked and fixed to the knuckle 3 by the in-wheel motor lock nut 502, and the in-wheel motor lock nut 502 is in positioning fit with the in-wheel motor mounting end surface 314. In addition, the in-wheel motor is provided with a brake disc mounting hole 511 for mounting the brake disc 4, and a hub bolt 501 for fixing the in-wheel motor to the wheel hub.
Further, in order to facilitate installation of the ball joint connected to the lower front control arm 2 and the ball joint connected to the lower rear control arm 1 in a limited space, the lower front control arm ball mounting hole 313 and the lower rear control arm ball mounting hole 312 have a height difference.
As shown in fig. 2, the spring damping system includes a pull rod 8, a winch 13, and a shock absorber 12, the winch 13 is hinged to the frame 10, one end of the pull rod 8 is hinged to the control arm, specifically, the upper control arm 7, and the other end is hinged to the winch 13. The shock absorber 12 is connected to the frame 10 at one end and hinged to the winch 13 at the other end, and is arranged transversely to the frame, where the transverse arrangement is substantially horizontal, and for example, the angle between the shock absorber and the horizontal plane may be set to be less than 30 degrees. When the wheel jumps up, the pull rod 8 is driven to move upwards, the winch 13 is pushed to convert the vertical movement of the wheel into the transverse movement, and the transverse movement acts on the shock absorber 12. The chassis height can be greatly reduced by converting the arrangement form of the shock absorbers 12 from the conventional inclined arrangement to the horizontal arrangement. Through the reasonable conversion of capstan winch 13, improve the transmission ratio of suspension, reduce the rigidity of bumper shock absorber spring, and then reduce spring weight, higher transmission ratio simultaneously also can increase the stroke of bumper shock absorber, and then improve spring damping system's efficiency.
Specifically, an upper control ball 701 is mounted in an upper control ball mounting hole 311, a lower rear control arm ball 102 is mounted in a lower rear control arm ball mounting hole 312, and a lower front control arm ball 202 is mounted in a lower front control arm ball mounting hole 313. The two forked support arms of the upper control arm 7 are respectively provided with an upper control arm bushing front mounting hole 711 and an upper control arm bushing rear mounting hole 712, and are correspondingly and respectively provided with an upper control front bushing 702 and an upper control arm rear bushing 703. The pull rod 8 is hinged with the upper control arm 7, and the upper control arm 7 is correspondingly provided with a pull rod mounting hole 713. Winch pull rod mounting holes 1311, winch shock absorber mounting holes 1312 and winch frame mounting holes 1313 are formed in the three corners of the winch respectively, and are correspondingly connected with the pull rod 8, the shock absorber 12 and the frame 10 respectively. Shock absorber 12 is connected to frame 10 through shock absorber frame mounting hole 1211. The lower rear control arm 1 and the lower front control arm 2 are respectively provided with a lower rear control arm bushing mounting hole 111 and a lower front control arm bushing mounting hole 211, the lower rear control arm bushing mounting hole 111 and the lower front control arm bushing mounting hole 211 are respectively and correspondingly provided with a lower rear control arm bushing 101 and a lower front control arm bushing 201, and the lower rear control arm bushing 101 and the lower front control arm bushing 201 are correspondingly connected with a pin shaft.
Further, the winch 13 is of a triangular structure, wherein a top corner portion is hinged to the frame 10, and two bottom corner portions are hinged to the pull rod 8 and the shock absorber 12 respectively. By changing the relative positions of the winch tie rod mounting hole 1311, the winch damper mounting hole 1312 and the winch frame mounting hole 1313, the ratio of the displacement of the tire jump up to the damper displacement can be changed.
In this embodiment, the winch 13 is connected to the frame 10 by means of a needle bearing.
Example two
An electric vehicle comprises the suspension structure for the wheel hub motor driven steering wheel in the first embodiment.
In addition to the above preferred embodiments, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope defined by the appended claims.
Claims (10)
1. The utility model provides a suspension structure for in-wheel motor drive directive wheel, includes frame, knuckle, in-wheel motor, control arm, a steering system, spring damping system, in-wheel motor's motor shaft and knuckle are connected, the one end of control arm is articulated with the knuckle, and the other end is articulated with the frame, its characterized in that:
the steering system comprises a steering engine and a steering tie rod, wherein one end of the steering tie rod is connected with a steering knuckle through a spherical hinge, and the other end of the steering tie rod is connected with the steering engine;
the spring damping system comprises a pull rod, a winch and a shock absorber, the winch is hinged to the frame, one end of the pull rod is hinged to the control arm, the other end of the pull rod is hinged to the winch, one end of the shock absorber is connected with the frame, the other end of the shock absorber is hinged to the winch, and the shock absorber is transversely arranged along the frame.
2. A suspension structure for an in-wheel motor-driven steerable wheel according to claim 1, characterized in that: the control arm comprises an upper control arm above the frame and a lower front control arm and a lower rear control arm below the upper control arm and the lower front control arm and the lower rear control arm which are arranged in parallel front and back, and the upper control arm, the lower front control arm and the lower rear control arm are all connected with the steering knuckle through spherical hinges and are hinged with the frame through a horizontal pin shaft, so that the upper control arm, the lower front control arm and the lower rear control arm can rotate up and down.
3. A suspension structure for an in-wheel motor-driven steerable wheel according to claim 2, characterized in that: the upper control arm is provided with a spherical hinge part connected with the steering knuckle and two forked support arms extending from the spherical hinge part to the direction of the frame, and the end parts of the forked support arms are hinged with the frame through a horizontal pin shaft.
4. A suspension structure for an in-wheel motor-driven steerable wheel according to claim 3, characterized in that: the upper portion of knuckle is equipped with the last extension that extends to the wheel hub direction, go up the extension and be equipped with the last control bulb mounting hole that is used for installing the ball pivot of being connected with last control arm.
5. A suspension arrangement for an in-wheel motor driven steerable wheel according to claim 4, characterized in that: the lower part side of knuckle is equipped with outside extension downwardly extending, downwardly extending is equipped with the tie rod bulb mounting hole that is used for installing the ball pivot of being connected with the tie rod, be equipped with down preceding control arm bulb mounting hole, lower back control arm bulb mounting hole around the bottom surface of knuckle side by side, be used for respectively installing the ball pivot of being connected with lower preceding control arm and the ball pivot of being connected with lower back control arm.
6. A suspension structure for an in-wheel motor-driven steerable wheel according to claim 5, characterized in that: and the lower front control arm ball head mounting hole and the lower rear control arm ball head mounting hole have a height difference.
7. A suspension structure for an in-wheel motor-driven steerable wheel according to claim 1, characterized in that: the middle position of the lower part of the steering knuckle is provided with a hub motor shaft mounting hole and a hub motor mounting end face arranged around the hub motor shaft mounting hole, the hub motor shaft is supported in the hub motor shaft mounting hole and locked and fixed by a hub motor locking nut, and the hub motor locking nut is matched with the hub motor mounting end face in a positioning mode.
8. A suspension structure for an in-wheel motor-driven steerable wheel according to any one of claims 1 to 7, characterized in that: the winch is of a triangular structure, wherein a top angle part is hinged to the frame, and two bottom angle parts are respectively hinged to the pull rod and the shock absorber.
9. A suspension structure for an in-wheel motor-driven steerable wheel according to claim 8, characterized in that: the winch is connected with the frame through a needle bearing.
10. An electric vehicle, characterized in that: a suspension arrangement for an in-wheel motor driven steerable wheel comprising a wheel as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023152670.5U CN214420156U (en) | 2020-12-24 | 2020-12-24 | Suspension structure for driving steering wheel by hub motor and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023152670.5U CN214420156U (en) | 2020-12-24 | 2020-12-24 | Suspension structure for driving steering wheel by hub motor and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214420156U true CN214420156U (en) | 2021-10-19 |
Family
ID=78052753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023152670.5U Active CN214420156U (en) | 2020-12-24 | 2020-12-24 | Suspension structure for driving steering wheel by hub motor and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214420156U (en) |
-
2020
- 2020-12-24 CN CN202023152670.5U patent/CN214420156U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109664702B (en) | Automotive suspension system and four-wheel independent steering distributed driving chassis platform | |
| CN1655982B (en) | A suspension system for vehicles | |
| CN108859732B (en) | Distributed hub-driven electric automobile chassis structure | |
| CN203093660U (en) | Independent air suspension frame of small and medium size bus | |
| CN111619296B (en) | Suspension system for wheel train movement device and automobile | |
| CN109677221B (en) | Virtual kingpin suspension system through wheel center | |
| CN110667703A (en) | Independent suspension axle system for commercial vehicle | |
| CN112092552A (en) | Unmanned aerial vehicle chassis structure with flexible rocking arm suspension | |
| CN211195750U (en) | Distributed driving electric automobile wheel edge integrated system | |
| CN111186274A (en) | Electric wheel Macpherson suspension structure capable of adjusting position of main pin axis | |
| CN109664701B (en) | Distributed driving chassis platform for realizing four-wheel independent steering | |
| CN215205057U (en) | Steering knuckle | |
| CN112659837A (en) | Suspension assembly suitable for in-wheel motor driven steering wheel and electric vehicle | |
| CN212637785U (en) | Vehicle steering control mechanism and motor vehicle | |
| CN213322544U (en) | Active side-tipping system | |
| CN111186270B (en) | Electric wheel independent suspension structure with four control arms | |
| CN214420156U (en) | Suspension structure for driving steering wheel by hub motor and electric vehicle | |
| CN214928774U (en) | Electric vehicle steering system driven by hub motor and electric vehicle | |
| CN214420157U (en) | Electric vehicle spring damping system driven by hub motor and electric vehicle | |
| CN111559425A (en) | McPherson suspension structure capable of steering in all directions based on hub motor | |
| CN200971032Y (en) | Front wheel independent suspension of beach buggy | |
| CN213261847U (en) | Large-corner virtual king pin double-cross arm independent suspension structure | |
| CN210284207U (en) | Miniature rail vehicle | |
| CN211641738U (en) | Integral type air bag pillar assembly and independent suspension axle system | |
| CN209852000U (en) | Virtual king pin suspension system penetrating through wheel center |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |