CN119176185A - Macpherson type suspension wheel side driving system - Google Patents
Macpherson type suspension wheel side driving system Download PDFInfo
- Publication number
- CN119176185A CN119176185A CN202411465628.9A CN202411465628A CN119176185A CN 119176185 A CN119176185 A CN 119176185A CN 202411465628 A CN202411465628 A CN 202411465628A CN 119176185 A CN119176185 A CN 119176185A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0421—Electric motor acting on or near steering gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/02—Attaching arms to sprung part of vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/422—Driving wheels or live axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a McPherson suspension wheel side driving system which comprises a transmission part, a driving motor, a connecting mechanism, an auxiliary bracket, a frame, a supporting bearing and the like, wherein the transmission part comprises a transmission mechanism shell and a transmission mechanism, the transmission mechanism is connected with the driving motor and a wheel hub, the transmission mechanism shell and the connecting mechanism are connected with the auxiliary bracket, the auxiliary bracket is connected with an inner ring of the supporting bearing, the frame is connected with an outer ring of the supporting bearing, the axis of the supporting bearing is vertical to the axis of a wheel, and a plumb line of a contact point between the wheel and the ground is positioned in the turning radius of the supporting bearing. Compared with the prior art, the invention has the advantages that the supporting bearing with the large turning radius is arranged at the top of the auxiliary bracket, so that the plumb line of the contact point between the wheel and the ground is always positioned within the turning radius of the supporting bearing, the requirement of large-angle steering can be met, the supporting rigidity requirement of the whole structure is reduced, the structural rigidity of the transmission part is enhanced by arranging the torsion bar spring, the abrasion of the gear and noise are reduced, and the like.
Description
Technical Field
The invention relates to the field of chassis design and manufacturing of electric automobiles, in particular to a McPherson suspension wheel side driving system.
Background
The energy-saving and environment-friendly electric automobile is one of measures for solving the problems of future energy and environment in the automobile industry, wherein the distributed driving electric automobile is an electric automobile with a plurality of independent power sources, transmission parts such as half shafts are omitted, and the electric automobile has the advantages of short transmission chain, high efficiency in power transmission and compact structure. Meanwhile, the driving/braking torque of each power source is independently controllable, the driving/braking torque control system has high maneuverability and high reliability, and the driving/steering integrated module of the wire control independent steering technology is further integrated, so that not only can active front and rear wheel control, direct yaw moment control and the like be realized, but also modularization and serialization development of the vehicle are facilitated, and the driving/braking torque control system is an ideal vehicle type realizing unmanned.
Compared with the wheel rim motor driving technology, the wheel rim motor driving technology can reduce the requirement on the performance of the driving motor. Application publication number CN118254865A discloses a four-wheel independent steering system of a wheel-side drive motor double-wishbone suspension, which has good structural rigidity, but the maximum steering angle of the wheels is constrained by the shape of the lower swing arm, and the output shaft of the steering reducer needs to be strictly coincident with the center lines of the steering arm and the spherical hinge, otherwise structural interference is caused. In this regard, application publication No. CN116279770a discloses an independent steering structure for a wheel based on a wheel hub motor, where the steering motor is mounted on a frame, so that the steering motor drives the whole suspension structure to steer, and interference between the wheel and the suspension is avoided during steering, but when the wheel is vertically jumped in the suspension configuration, the wheel center line moves in the lateral direction of the wheel, and the top steering support and the steering shaft are supported only by tapered roller bearings, and when the wheel center line exceeds the turning radius of the tapered roller bearings, the vertical force of the wheel end can generate a larger overturning moment for the bearings, so that the configuration has a high supporting rigidity requirement for the top tapered roller bearings and the structure.
In summary, how to design a wheel driving system that can meet the requirement of large-angle steering and has low requirement on supporting rigidity is a technical problem to be solved.
Disclosure of Invention
The invention aims to overcome the defect that the prior art cannot meet the requirement of large-angle steering or has high requirement on supporting rigidity, and provides a Macpherson type suspension wheel driving system.
The aim of the invention can be achieved by the following technical scheme:
according to one aspect of the present invention, there is provided a macpherson suspension rim driving system including a wheel, a hub, a transmission portion, a driving motor, a ball joint, a connecting mechanism, a sub-mount, a frame, a support bearing, and a steering motor;
The wheel is arranged on the wheel hub, the transmission part comprises a transmission mechanism shell and a transmission mechanism positioned in the transmission mechanism shell, the input end of the transmission mechanism is connected with a driving motor, the output end of the transmission mechanism is connected with the wheel hub, the transmission mechanism shell is connected with an auxiliary bracket through a spherical hinge and a connection mechanism, the auxiliary bracket is connected with an inner ring of a supporting bearing, and the frame is connected with an outer ring of the supporting bearing;
The plumb line of the wheel-to-ground contact point is located within the radius of gyration of the support bearing.
The transmission mechanism comprises a primary transmission mechanism shell and a secondary transmission mechanism shell, a double-row tapered roller bearing is arranged between the primary transmission mechanism shell and the secondary transmission mechanism shell, the transmission mechanism comprises a primary transmission mechanism arranged in the primary transmission mechanism shell, a secondary transmission mechanism arranged in the secondary transmission mechanism shell and a transmission shaft, and transmission center distances of the primary transmission mechanism and the secondary transmission mechanism are fixed.
The driving system further comprises a torsion bar spring, a fixed support and a swinging rod, a bearing is arranged between the middle part of the transmission shaft and the secondary transmission mechanism shell, the transmission shaft is a hollow shaft, the torsion bar spring penetrates through a cavity in the transmission shaft, one end of the torsion bar spring is connected with the fixed support, the other end of the torsion bar spring is connected with the swinging rod, the fixed support is fixedly connected with the secondary transmission mechanism shell, and the swinging rod and the primary transmission mechanism shell form a revolute pair.
The connecting mechanism comprises a transverse pull rod, a lower swing arm and a shock absorber, wherein one side of the primary transmission mechanism shell, which is far away from the ground, is connected with the auxiliary support through a spherical hinge, two ends of the transverse pull rod are respectively connected with one side of the secondary transmission mechanism shell, which is close to the auxiliary support, and the auxiliary support through the spherical hinge, one end of the lower swing arm is connected with one side of the secondary transmission mechanism shell, which is close to the ground, through the spherical hinge, the other end of the lower swing arm is connected with the auxiliary support through a hinge, and two ends of the shock absorber are respectively connected with the lower swing arm and the auxiliary support through the spherical hinge.
As the preferable technical scheme, the primary transmission mechanism shell, the secondary transmission mechanism shell, the lower swing arm and the transverse pull rod form a suspension mechanism, a connecting line of a spherical hinge on one side of the primary transmission mechanism shell far away from the ground and a spherical hinge on one side of the secondary transmission mechanism shell close to the ground is a secondary main pin of the suspension mechanism, an inner inclination angle is formed between the secondary main pin and a middle section of a wheel perpendicular to an axis, and a back inclination angle is formed between the secondary main pin and a middle section of the wheel parallel to the axis.
As a preferable technical scheme, the damper is connected with an elastic element in parallel.
The first gear is fixedly connected to the first gear shaft, the first gear shaft is fixedly connected with an output shaft of the driving motor, a bearing is arranged between the first gear shaft and a first-stage transmission mechanism shell, and the second gear is fixedly connected to the transmission shaft.
The secondary transmission mechanism comprises a fourth gear shaft, a third gear and a fourth gear which are meshed with each other, wherein the third gear is fixedly connected to a transmission shaft, the fourth gear is fixedly connected to the fourth gear shaft, the fourth gear shaft is fixedly connected with a hub, and a bearing is arranged between the fourth gear shaft and a secondary transmission mechanism shell.
As the preferable technical scheme, the driving motor is fixedly arranged at one side of the primary transmission mechanism shell, which is close to the frame.
As the preferable technical scheme, the steering motor is arranged on the frame, an output shaft of the steering motor is connected with the auxiliary bracket through a coupler, and the axis of the output shaft of the steering motor is coincident with the axis of the slewing bearing.
Compared with the prior art, the invention has the following beneficial effects:
1) The supporting bearing with a large turning radius is arranged at the top of the auxiliary bracket, so that the plumb line of the contact point between the wheel and the ground is always positioned within the turning radius of the supporting bearing in the vertical jumping or steering process of the wheel, thereby not only meeting the requirement of large-angle steering, but also reducing the supporting rigidity requirement on the whole structure of the wheel driving system and reducing the vertical space occupied by the supporting bearing;
2) The primary transmission mechanism shell, the secondary transmission mechanism shell, the lower swing arm and the transverse pull rod form the Macpherson suspension, so that the wheel edge driving system has good bearing capacity, and wheel positioning parameters similar to those of the existing vehicle can be realized;
3) According to the invention, the torsion bar spring is arranged at the connecting transmission shaft of the primary transmission mechanism and the secondary transmission mechanism and is used as an elastic element in the suspension, so that the structural rigidity of the wheel driving system, especially the structural rigidity of the connecting part of the primary transmission mechanism and the secondary transmission mechanism, is enhanced, the change of the center distance of the transmission mechanism and the change of the meshing angle of gears caused by the bearing deformation of the shell of the transmission mechanism are reduced, and the abrasion and noise of the gears are reduced;
4) The invention has large-angle steering capability, reduces the performance requirement on the driving motor through the multi-stage transmission mechanism, and simultaneously, the steering motor is arranged on the frame, and the arrangement position of the driving motor is close to the frame, thereby being beneficial to relieving the unsprung mass negative effect caused by the driving motor.
Drawings
FIG. 1 is a schematic illustration of a Macpherson suspension wheel side drive system configuration according to the present invention;
FIG. 2 is a schematic diagram of a transmission part structure of the present invention;
The reference numerals in the figures indicate:
1. The wheel, 2, the wheel hub, 3, the fourth gear, 4, the fixed bolster, 5, the third gear, 6, two-stage transmission mechanism casing, 7, biserial tapered roller bearing, 8, the auxiliary stay, 9, steering motor, 10, the frame, 11, supporting bearing, 12, one-stage transmission mechanism casing, 13, driving motor, 14, first gear, 15, pendulum rod, 16, torsion bar spring, 17, transmission shaft, 18, second gear, 19, bumper shock absorber, 20, transverse pull rod, 21, lower swing arm.
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 present invention without making any inventive effort, shall fall within the scope of the present invention.
The invention provides a McPherson type suspension wheel rim driving system, which comprises a wheel 1, a hub 2, a transmission part, a torsion bar spring 16 mechanism, a driving motor 13, a spherical hinge, a connecting mechanism, a secondary bracket 8, a frame 10, a support bearing 11 and a steering motor 9.
The wheel 1 is fixedly connected with the hub 2 through bolts and nuts.
The transmission part comprises a primary transmission mechanism shell 12, a secondary transmission mechanism shell 6, a primary transmission mechanism and a secondary transmission mechanism, wherein the primary transmission mechanism is arranged in the primary transmission mechanism shell 12, and the secondary transmission mechanism is arranged in the secondary transmission mechanism shell 6. The primary transmission mechanism and the secondary transmission mechanism are transmission mechanisms with fixed transmission center distances, such as a gear transmission mechanism, a belt transmission mechanism, a synchronous belt transmission mechanism and the like. The output shaft of the primary transmission mechanism is connected with the input shaft of the secondary transmission mechanism or shares a shaft, the shell of the primary transmission mechanism is connected with the shell of the secondary transmission mechanism through a revolute pair, the central axis of the revolute pair is coaxial with the output shaft of the primary transmission mechanism and the input shaft of the secondary transmission mechanism, the output shaft of the secondary transmission mechanism is connected with the wheel 1, and the shell of the secondary transmission mechanism is connected with the wheel 1 through the revolute pair.
The driving motor 13 is fixedly arranged on a shell of the primary transmission mechanism, an output shaft of the driving motor 13 is connected with an input shaft of the primary transmission mechanism, and output torque of the driving motor 13 is transmitted by the primary transmission mechanism and the secondary transmission mechanism and then drives the wheels 1 to rotate.
One end of the torsion bar spring 16 is fixedly connected with the shell of the secondary transmission mechanism, the other end of the torsion bar spring 16 is fixedly connected with the shell of the primary transmission mechanism, the torsion bar of the torsion bar spring 16 is arranged in the central holes of the output shaft of the primary transmission mechanism and the input shaft of the secondary transmission mechanism, the central axis of the torsion bar coincides with the axis of the revolute pair between the shell 12 of the primary transmission mechanism and the shell 6 of the secondary transmission mechanism, one end of the shock absorber 19 is connected with the lower swing arm 21 through a spherical hinge, and the other end of the shock absorber is connected with the auxiliary bracket 8 through a spherical hinge.
The connecting mechanism comprises a transverse pull rod 20, a lower swing arm 21 and a shock absorber 19, wherein one end of the lower swing arm 21 is connected with the auxiliary support 8 through a revolute pair, the other end of the lower swing arm 21 is connected with a shell of the secondary transmission mechanism through a spherical hinge, the shell of the primary transmission mechanism is connected with the auxiliary support 8 through a spherical hinge, the spherical hinge is generally arranged at the top of the shell 12 of the primary transmission mechanism, one end of the transverse pull rod 20 is connected with the auxiliary support 8 through the spherical hinge, the other end of the transverse pull rod is connected with the shell of the secondary transmission mechanism through the spherical hinge, and the primary transmission mechanism, the secondary transmission mechanism, the lower swing arm 21 and the transverse pull rod 20 form a Macpherson suspension mechanism.
The support bearing 11 is a bearing with a large turning radius and capable of bearing axial load and radial load at the same time, and can be a turntable bearing, a double-row tapered roller bearing or a double-row angular contact ball bearing, and compared with the double-row tapered roller bearing and the double-row angular contact ball bearing, the turntable bearing has the main advantages of large turning radius and short axial length, and can reduce the vertical size of a wheel rim driving system. The rotation axis of the supporting bearing 11 is the steering main pin of the wheel 1, the supporting bearing 11 is arranged between the auxiliary bracket 8 and the frame 10 to form a rotating pair required by steering the wheel 1, and the inner ring and the outer ring of the supporting bearing 11 are respectively fixedly connected with the auxiliary bracket 8 and the frame 10 through screws, and the plumb line of the contact point of the wheel 1 and the ground is always positioned within the rotation radius of the supporting bearing 11 in the vertical jumping or steering process of the wheel 1.
The steering motor 9 is fixedly arranged on the frame 10, an output shaft of the steering motor 9 is connected with the auxiliary bracket 8, and an axis of the output shaft of the steering motor 9 coincides with a rotation central axis of the supporting bearing 11.
When the wheel 1 is excited by the road surface to generate vertical runout, the primary transmission mechanism and the secondary transmission mechanism rotate relatively, the torsion bar spring 16 is twisted by the relative rotation, torsion resistant moment is generated, the lower swing arm 21 swings correspondingly along with the runout of the wheel 1, the shock absorber 19 is compressed or stretched to generate damping force, the vertical runout of the wheel 1 is restrained and attenuated by the moment and the damping force, and the vertical runout of the wheel 1 cannot cause interference of transmission components in the transmission mechanism because the center distances of the primary transmission mechanism and the secondary transmission mechanism are fixed values.
When the wheel 1 turns, the steering motor 9 outputs driving torque to drive the auxiliary bracket 8, the primary transmission mechanism, the secondary transmission mechanism, the lower swing arm 21, the transverse pull rod 20 and the wheel 1 to rotate around the rotation axis of the support bearing 11, so that the wheel 1 can realize large-angle turning.
Specifically, as shown in fig. 1 and 2, the primary transmission mechanism includes a first gear shaft, a first gear 14, and a second gear 18, and the secondary transmission mechanism includes a third gear 5, a fourth gear 3, and a transmission shaft 17. The first gear shaft is connected with an output shaft of the driving motor 13 and is driven by a spline, a pair of deep groove ball bearings are arranged between two ends of the first gear shaft and the first-stage driving mechanism shell 12, the first gear 14 is fixedly connected to the first gear shaft, the first gear 14 is meshed with the second gear 18, two ends of the driving shaft 17 are respectively connected with the second gear 18 and the third gear 5 through spline fit, the third gear 5 is meshed with the fourth gear 3, the fourth gear 3 is fixedly connected to the fourth gear shaft, and the fourth gear 3 is connected with the hub 2 through spline fit.
A double-row tapered roller bearing 7 is installed between the secondary transmission mechanism housing 6 and the primary transmission mechanism housing 12, and the double-row tapered roller bearing 7 transmits load between the secondary transmission mechanism housing 6 and the primary transmission mechanism housing 12 and forms a revolute pair required by the relative rotation of the secondary transmission mechanism housing 6 and the primary transmission mechanism housing 12.
The driving motor 13 is fixedly connected with the primary transmission mechanism shell 12 through screws, a pair of tapered roller bearings are arranged between the hub 2 and the secondary transmission mechanism shell 6 to transmit vertical force and lateral force received by the wheel 1 and corresponding additional bending moment, and a deep groove ball bearing is arranged between the middle section of the transmission shaft 17 and the secondary transmission mechanism shell 6 and is used for supporting the transmission shaft 17.
The center distance between the first gear shaft and the second gear 18 is a fixed value, the center distance between the third gear 5 and the fourth gear 3 is a fixed value, and when the driving motor 13 outputs driving torque, the driving torque is transmitted to the wheel 1 through the first gear shaft, the second gear 18, the transmission shaft 17, the third gear 5, the fourth gear 3 and the hub 2 in sequence, so that the driving mechanism is a speed-reducing and torque-increasing transmission mechanism.
The torsion bar spring 16 mechanism comprises a fixed support 4, a torsion bar spring 16 and a swinging rod 15, wherein a transmission shaft 17 is a hollow shaft, the torsion bar spring 16 penetrates through a central hole of the transmission shaft 17, two ends of the torsion bar spring 16 are respectively connected with the fixed support 4 and the swinging rod 15 through spline fit, the fixed support 4 is fixedly connected with the secondary transmission mechanism shell 6 through screws, and the swinging rod 15 and the primary transmission mechanism shell 12 form revolute pair fit through bolts. In terms of bearing structure, the double-row tapered roller bearing 7 at the joint of the primary transmission mechanism shell 12 and the secondary transmission mechanism shell 6 has weaker bending moment resistance due to smaller span, and the embodiment enhances the structural rigidity of the joint in the longitudinal direction and the vertical direction by coaxially arranging the torsion bar spring 16 mechanism and relieves the impact on the double-row tapered roller bearing 7 when the wheel 1 is subjected to impact load.
The top of the primary transmission mechanism shell 12 is connected with the auxiliary support 8 through a spherical hinge, the secondary transmission mechanism shell 6 is respectively connected with the transverse pull rod 20 and the lower swing arm 21 through spherical hinges, the transverse pull rod 20 is connected with the auxiliary support 8 through spherical hinges, the lower swing arm 21 is connected with the auxiliary support 8 through bolts and nuts to form a revolute pair, and two ends of the shock absorber 19 are respectively connected with the auxiliary support 8 and the lower swing arm 21 through spherical hinges.
The inner ring of the supporting bearing 11 is fixedly connected with the auxiliary bracket 8 through bolts, the outer ring of the supporting bearing 11 is fixedly connected with the frame 10 through bolts, the supporting bearing 11 forms a revolute pair required by steering of the wheel rim driving system, the plumb line of the contact point of the wheel 1 and the ground is always positioned within the turning radius of the supporting bearing 11, a self-locking speed reducing mechanism is integrated in the steering motor 9, the steering motor 9 is fixedly connected with the frame 10 through bolts, an output shaft of the steering motor 9 is connected with the auxiliary bracket 8, and optionally, a coupler is arranged between the output shaft of the steering motor 9 and the auxiliary bracket 8.
The primary transmission mechanism shell 12, the secondary transmission mechanism shell 6, the double-row tapered roller bearing 7, the lower swing arm 21 and the transverse pull rod 20 form a Macpherson suspension mechanism, the shock absorber 19 provides damping force for the suspension, a connecting line between the top spherical hinge of the primary transmission mechanism shell 12 and the bottom spherical hinge of the secondary transmission mechanism shell 6 is a secondary main pin of the suspension mechanism, an included angle theta between the secondary main pin and the longitudinal middle surface of the wheel 1 is an inner inclination angle, an included angle gamma between the secondary main pin and the transverse middle surface of the wheel 1 is a back inclination angle, when the wheel 1 is excited by a road surface to generate vertical runout, the primary transmission mechanism shell 12 and the secondary transmission mechanism shell 6 generate relative rotation, the relative rotation causes torsion bar spring 16 to twist and generate torque resisting torsion, and the lower swing arm 21 swings, and the shock absorber 19 is compressed or stretched and generates damping force. Optionally, an elastic element is connected in parallel to the damper 19 to form a sub-spring, so that the suspension mechanism has a nonlinear elastic characteristic with variable rigidity.
The Macpherson type suspension wheel side driving system provided by the invention has the functions of independent driving and large-angle steering, and is high in modularization degree. Meanwhile, the integral structural rigidity of the wheel side driving system is enhanced by adopting the integrated design of the multi-stage wheel side transmission mechanism and the McPherson suspension, adopting the support bearing 11 with a large turning radius and arranging the torsion bar spring 16 at the joint of the transmission mechanism shell.
The present invention is not limited to the above embodiments, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and these modifications and substitutions are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. The McPherson suspension wheel side driving system is characterized by comprising wheels (1), a hub (2), a transmission part, a driving motor (13), a spherical hinge, a connecting mechanism, a secondary bracket (8), a frame (10), a support bearing (11) and a steering motor (9);
The steering motor comprises a wheel (1), a wheel hub (2), a transmission part, an auxiliary support (8), a frame (10), a steering motor (9) and a steering motor, wherein the wheel (1) is arranged on the wheel hub (2), the transmission part comprises a transmission mechanism shell and a transmission mechanism positioned in the transmission mechanism shell, the input end of the transmission mechanism is connected with a driving motor (13), the output end of the transmission mechanism is connected with the wheel hub (2), the transmission mechanism shell is connected with the auxiliary support (8) through a spherical hinge and a connection mechanism, the auxiliary support (8) is connected with the inner ring of a supporting bearing (11), the frame (10) is connected with the outer ring of the supporting bearing (11), and the axis of the supporting bearing (11) is perpendicular to the axis of the wheel (1);
The plumb line of the contact point of the wheel (1) with the ground is located within the radius of gyration of the support bearing (11).
2. The Macpherson suspension wheel side driving system according to claim 1, wherein the transmission mechanism shell comprises a primary transmission mechanism shell (12) and a secondary transmission mechanism shell (6), a double-row tapered roller bearing (7) is arranged between the primary transmission mechanism shell (12) and the secondary transmission mechanism shell (6), the transmission mechanism comprises a primary transmission mechanism arranged in the primary transmission mechanism shell (12), a secondary transmission mechanism arranged in the secondary transmission mechanism shell (6) and a transmission shaft (17), and transmission center distances of the primary transmission mechanism and the secondary transmission mechanism are fixed.
3. The McPherson type suspension wheel side driving system according to claim 2, further comprising a torsion bar spring (16), a fixing support (4) and a swinging rod (15), wherein a bearing is arranged between the middle part of the transmission shaft (17) and the secondary transmission mechanism shell (6), the transmission shaft (17) is a hollow shaft, the torsion bar spring (16) penetrates through a cavity in the transmission shaft (17), one end of the torsion bar spring is connected with the fixing support (4), the other end of the torsion bar spring is connected with the swinging rod (15), the fixing support (4) is fixedly connected with the secondary transmission mechanism shell (6), and the swinging rod (15) and the primary transmission mechanism shell (12) form a revolute pair.
4. The McPherson suspension wheel side driving system according to claim 2 is characterized in that the connecting mechanism comprises a transverse pull rod (20), a lower swing arm (21) and a shock absorber (19), one side, far away from the ground, of the primary transmission mechanism shell (12) is connected with the auxiliary support (8) through a spherical hinge, two ends of the transverse pull rod (20) are connected with one side, close to the auxiliary support (8), of the secondary transmission mechanism shell (6) and the auxiliary support (8) through the spherical hinge respectively, one end of the lower swing arm (21) is connected with one side, close to the ground, of the secondary transmission mechanism shell (6) through the spherical hinge, the other end of the lower swing arm (21) is connected with the auxiliary support (8) through the spherical hinge, and two ends of the shock absorber (19) are connected with the lower swing arm (21) and the auxiliary support (8) through the spherical hinge respectively.
5. The macpherson suspension rim driving system according to claim 4, wherein the primary transmission mechanism housing (12), the secondary transmission mechanism housing (6), the lower swing arm (21) and the transverse pull rod (20) form a suspension mechanism, a connection line of a spherical hinge on one side of the primary transmission mechanism housing (12) far away from the ground and a spherical hinge on one side of the secondary transmission mechanism housing (6) close to the ground is a secondary kingpin of the suspension mechanism, an inner inclination angle is formed between the secondary kingpin and a middle section of the wheel (1) perpendicular to an axis, and a back inclination angle is formed between the secondary kingpin and a middle section of the wheel (1) parallel to the axis.
6. The macpherson suspension wheel side driving system according to claim 4, wherein the damper (19) is connected in parallel with an elastic element.
7. The Macpherson type suspension wheel side driving system according to claim 2, wherein the primary transmission mechanism comprises a first gear shaft, a first gear (14) and a second gear (18) which are meshed with each other, the first gear (14) is fixedly connected to the first gear shaft, the first gear shaft is fixedly connected with an output shaft of the driving motor (13), a bearing is arranged between the first gear shaft and the primary transmission mechanism shell (12), and the second gear (18) is fixedly connected to the transmission shaft (17).
8. The Macpherson type suspension wheel side driving system according to claim 2, wherein the secondary transmission mechanism comprises a fourth gear shaft, a third gear (5) and a fourth gear (3) which are meshed with each other, the third gear (5) is fixedly connected to a transmission shaft (17), the fourth gear (3) is fixedly connected to the fourth gear shaft, the fourth gear shaft is fixedly connected with a hub (2), and a bearing is arranged between the fourth gear shaft and a secondary transmission mechanism shell (6).
9. A macpherson suspension wheel side drive system according to claim 2, characterised in that the drive motor (13) is fixedly mounted on the side of the primary transmission housing (12) adjacent to the frame (10).
10. The macpherson suspension wheel side driving system according to claim 1, wherein the steering motor (9) is mounted on a frame (10), an output shaft of the steering motor (9) is connected with the auxiliary bracket (8) through a coupling, and an axis of the output shaft of the steering motor (9) coincides with an axis of a slewing bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411465628.9A CN119176185A (en) | 2024-10-21 | 2024-10-21 | Macpherson type suspension wheel side driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411465628.9A CN119176185A (en) | 2024-10-21 | 2024-10-21 | Macpherson type suspension wheel side driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119176185A true CN119176185A (en) | 2024-12-24 |
Family
ID=93897515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411465628.9A Pending CN119176185A (en) | 2024-10-21 | 2024-10-21 | Macpherson type suspension wheel side driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119176185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119911317A (en) * | 2025-03-10 | 2025-05-02 | 昆明理工大学 | An intelligent car corner module |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202264634U (en) * | 2011-10-17 | 2012-06-06 | 同济大学 | Ordinary gear speed-reducing type internal wheel driving device with power switching device |
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| CN219295126U (en) * | 2022-12-28 | 2023-07-04 | 阿博思汽车(杭州)有限公司 | Double-damping wheel suspension assembly and electric vehicle |
| CN116872716A (en) * | 2023-07-18 | 2023-10-13 | 上海汽车集团股份有限公司 | A wheel rim assembly mechanism and suspension system |
| CN117885484A (en) * | 2024-02-04 | 2024-04-16 | 北理华创(佛山)新能源汽车科技有限公司 | Integrated suspension for drive-by-wire chassis |
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| CN202264634U (en) * | 2011-10-17 | 2012-06-06 | 同济大学 | Ordinary gear speed-reducing type internal wheel driving device with power switching device |
| WO2017049468A1 (en) * | 2015-09-23 | 2017-03-30 | Robert Bosch Gmbh | Independent suspension employing vertical suspension strut for vehicle wheel individually driven by electric motor |
| CN105644292A (en) * | 2016-02-23 | 2016-06-08 | 北京理工大学 | Rocker suspension system of high-speed unmanned vehicle mobile platform |
| CN106114669A (en) * | 2016-07-29 | 2016-11-16 | 中国科学院合肥物质科学研究院 | A kind of swinging arm wheeled type unmanned ground vehicle |
| CN111204175A (en) * | 2020-02-20 | 2020-05-29 | 坤泰车辆系统（常州）有限公司 | Suspension system with wheel drive structure |
| DE102020213664A1 (en) * | 2020-10-30 | 2022-05-05 | Robert Bosch Gesellschaft mit beschränkter Haftung | Individual wheel adjuster for a motor vehicle |
| CN219295126U (en) * | 2022-12-28 | 2023-07-04 | 阿博思汽车(杭州)有限公司 | Double-damping wheel suspension assembly and electric vehicle |
| CN116872716A (en) * | 2023-07-18 | 2023-10-13 | 上海汽车集团股份有限公司 | A wheel rim assembly mechanism and suspension system |
| CN117885484A (en) * | 2024-02-04 | 2024-04-16 | 北理华创(佛山)新能源汽车科技有限公司 | Integrated suspension for drive-by-wire chassis |
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| CN119911317A (en) * | 2025-03-10 | 2025-05-02 | 昆明理工大学 | An intelligent car corner module |
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