CN111114294A - Electric driving wheel assembly integrating driving system, braking system and steering system - Google Patents
Electric driving wheel assembly integrating driving system, braking system and steering system Download PDFInfo
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- CN111114294A CN111114294A CN202010048962.XA CN202010048962A CN111114294A CN 111114294 A CN111114294 A CN 111114294A CN 202010048962 A CN202010048962 A CN 202010048962A CN 111114294 A CN111114294 A CN 111114294A
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- Prior art keywords
- brake
- hub bearing
- hub
- fixedly connected
- gear
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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
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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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
- 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
- B62D5/0418—Electric motor acting on road wheel carriers
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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
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
- B62D5/0463—Controlling the motor calculating assisting torque from the motor based on driver input
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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
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses an electric driving wheel assembly integrating a driving system, a braking system and a steering system, which comprises a hub component, a driving component, a braking component and a steering component; the hub assembly comprises a hub bearing, a hub bearing outer ring and a hub bearing inner ring, and the hub bearing inner ring is rotatably connected to the inner side of the hub bearing outer ring through the hub bearing; the driving assembly comprises a stator and a rotor, the rotor rotates relative to the stator, the stator is fixedly connected to the outer ring of the hub bearing, and the rotor is fixedly connected to the inner ring of the hub bearing; the brake assembly comprises a brake disc and a brake hub, the brake hub is fixedly connected with an inner ring of a hub bearing, the brake disc is fixed on an outer ring of the hub bearing, a brake shoe is arranged on the brake disc, and a brake electromagnet for controlling the brake shoe to move relative to the brake hub is fixedly connected to the brake disc; the invention integrates the functions of driving, braking and steering.
Description
Technical Field
The invention relates to the technical field of electric driving wheel assemblies, in particular to an electric driving wheel assembly integrating a driving system, a braking system and a steering system.
Background
An electric drive wheel assembly system integrates an electric motor on a wheel hub for driving a wheeled chassis or a wheeled vehicle, is a main driving component of a chassis or vehicle type of distributed driving, and greatly simplifies the structure of the wheeled chassis. The existing electric driving wheel assembly is mostly only integrated with a driving motor in a wheel hub, a driving motor control unit of the existing electric driving wheel assembly is still arranged outside the wheel hub, a braking system and a steering system are required to be additionally installed, mechanical transmission connecting pieces are more, and the installation, the debugging and the overhaul are still complex.
Currently, the requirements of intelligent driving and unmanned vehicles on a chassis are increasing day by day, and even though the existing wheel type chassis provided with the traditional electric driving wheel assembly still cannot meet the requirements of the intelligent driving vehicle on comprehensive electrification, simplification and modularization of the chassis. Too many distributed mechanical structural components are arranged, and the complicated wire harness connection between the control unit and the execution unit hinders the development of intelligent driving and unmanned vehicles.
Disclosure of Invention
The invention aims to provide an electric driving wheel assembly integrating a driving system, a braking system and a steering system, and aims to solve the problems that the conventional electric driving wheel assembly in the background art only integrates a driving motor into a wheel hub, a driving motor control unit is still arranged outside the wheel hub, the braking system and the steering system need to be additionally installed, mechanical transmission connecting pieces are more, and the installation, the debugging and the overhauling are still complicated.
In order to achieve the purpose, the invention provides the following technical scheme:
an electric driving wheel assembly integrating a driving system, a braking system and a steering system comprises a hub component, a driving component, a braking component and a steering component;
the hub assembly comprises a hub bearing, a hub bearing outer ring and a hub bearing inner ring, and the hub bearing inner ring is rotatably connected to the inner side of the hub bearing outer ring through the hub bearing;
the driving assembly comprises a stator and a rotor, the rotor rotates relative to the stator, the stator is fixedly connected to the outer ring of the hub bearing, and the rotor is fixedly connected to the inner ring of the hub bearing;
the brake assembly comprises a brake disc and a brake hub, the brake hub is fixedly connected with an inner ring of a hub bearing, the brake disc is fixed on an outer ring of the hub bearing, a brake shoe is arranged on the brake disc, and a brake electromagnet for controlling the brake shoe to move relative to the brake hub is fixedly connected to the brake disc;
the steering assembly comprises a steering motor fixedly connected to the outer ring of the hub bearing and a first gear fixedly connected to a suspension of the vehicle body, a second gear is fixedly connected to an output shaft of the steering motor and meshed with the first gear, and the center distance between the second gear and the first gear is a fixed value.
When the rotor rotates relative to the stator, the rotor is fixedly connected to the inner ring of the hub bearing, so that the inner ring of the hub bearing rotates in the rotating process of the rotor.
The brake electromagnet works to realize that the brake shoe moves relative to the brake hub, when the brake shoe is attached to the brake hub, the brake hub is fixedly connected with the inner ring of the hub bearing, so that the purpose of braking the inner ring of the hub bearing is realized, when the inner ring of the hub bearing is braked, when the inner ring of the hub bearing does not need to be braked by the brake electromagnet, the brake shoe is far away from the brake hub to move, and when the brake shoe is separated from the brake hub, the inner ring of the hub bearing does not exist, so that the inner ring of the hub bearing can rotate.
The steering motor works to drive the second gear to rotate, and the first gear is fixedly connected to the vehicle body suspension frame, so that the second gear rotates relative to the first gear in the rotating process, and the steering effect is realized.
As a further scheme of the invention: the stator is fixedly connected to the stator support;
fixedly connected with rotor housing on the rotor, rotor housing's right-hand member is provided with the draw-in groove of transmission output torque, rotor housing's left end fixedly connected with wind-guiding blade, the setting of draw-in groove is convenient for realize rotor housing and realize torque output to tire under the rotor pivoted condition, and wind-guiding blade is convenient for realize the radiating action to the radiator.
As a further scheme of the invention: support bearings are arranged between the stator support and the left end and the right end of the rotor shell, the rotor shell rotates relative to the stator support through the support bearings, and the rotor shell is convenient to rotate relative to the stator support through the support bearings;
still be provided with the sealing member between stator support and the rotor housing's the left and right sides both ends, rotor housing passes through the sealing member and forms sealed cavity with stator support, and the sealing member is sealing washer or oil blanket, and sealing washer or oil blanket setting have realized the sealed effect at stator support and rotor housing left and right sides both ends.
As a further scheme of the invention: the electric energy conversion device comprises a stator support, a controller and a power device, and is characterized by further comprising the controller used for controlling the driving assembly and a radiator fixedly connected to the controller, wherein the radiator is fixedly connected to the stator support, radiating blades are fixedly connected to the radiator, the structure and the working principle of the controller are the prior art, and the controller is used for controlling the power device, so that the electric energy is converted into mechanical energy by controlling the driving assembly, the radiator is an air-cooled radiator, and heat exchange is realized through the flowing of air.
As a further scheme of the invention: the hub bearing inner ring is connected with a rim through a flange, a tire is mounted on the rim, the hub bearing inner ring is connected with the rim through the flange, the rotation of the rim is driven through the flange when the hub bearing inner ring rotates, and then the rotation of the tire is realized through the rim.
As a further scheme of the invention: the utility model discloses a steering motor, including wheel hub bearing outer lane, support piece, the stiff end fixed connection that turns to the motor, wheel hub bearing outer lane is last fixedly connected with support piece, support piece fixed connection is in wheel hub bearing outer lane, the stiff end fixed connection that turns to the motor is on support piece, the axis of rotation activity that turns to the motor pass support piece and with second gear fixed connection, support piece swing joint is in the below of first gear.
As a further scheme of the invention: the support piece includes the fixed plate on the wheel hub bearing outer lane, fixedly connected with connecting plate and drum on the lateral wall of fixed plate, the axis of rotation activity that turns to the motor pass the connecting plate and with second gear fixed connection, the lower surface fixed connection of first gear has the loose axle, loose axle swing joint is in the drum, turn to motor work and realize driving the second gear and rotate, because first gear fixed connection is on automobile body suspension, simultaneously because the loose axle of first gear lower surface fixed connection rotates and connects in the drum, because the fixed plate, the effect of connecting plate and drum has realized that the centre-to-centre spacing between second gear and the first gear is the definite value, consequently the second gear realizes that the relative first gear of second gear rotates at the pivoted in-process, thereby drive the tire through automobile body suspension and rotate, realize the effect that the tire turned to.
As a further scheme of the invention: the working method of the electric drive wheel assembly comprises the following specific steps:
the rotor rotates relative to the stator, the inner ring of the hub bearing rotates in the process of the rotation of the rotor, and the rim is driven through the flange, so that the tire is driven;
when the brake shoe is attached to the brake hub, the brake hub is fixedly connected with the inner ring of the hub bearing, so that the inner ring of the hub bearing is braked, and when the inner ring of the hub bearing is braked, the tire is braked;
the steering motor works to drive the second gear to rotate, and the second gear rotates relative to the first gear in the rotating process, so that the tire is driven to rotate through the vehicle body suspension, and the steering effect of the tire is realized.
When the rotor rotates relative to the stator, the rotor is fixedly connected to the inner ring of the hub bearing, so that the inner ring of the hub bearing rotates in the rotating process of the rotor, and the rim is driven through the flange, so that the tire is driven.
The brake electromagnet works to realize that the brake shoe moves relative to the brake hub, when the brake shoe is attached to the brake hub, because the brake hub is fixedly connected with the inner ring of the hub bearing, the purpose of braking the inner ring of the hub bearing is realized, when the inner ring of the hub bearing brakes, the purpose of braking a tire is realized, when the tire is not required to be braked by the brake electromagnet, the brake shoe is far away from the brake hub to move, when the brake shoe is separated from the brake hub, the tire is not braked, and therefore the rotating action of the tire when the rotor works can be realized.
The steering motor works to drive the second gear to rotate, the first gear is fixedly connected to the vehicle body suspension, meanwhile, the movable shaft fixedly connected to the lower surface of the first gear is rotatably connected to the cylinder, and the fixed plate, the connecting plate and the cylinder are used for achieving that the center distance between the second gear and the first gear is a fixed value, so that the second gear can rotate relative to the first gear in the rotating process, the vehicle body suspension is used for driving the tire to rotate, and the tire steering effect is achieved.
Compared with the prior art, the invention has the beneficial effects that:
the hub bearing inner ring is connected to the inner side of the hub bearing outer ring in a rotating mode through the hub bearing, the hub bearing inner ring can rotate relative to the hub bearing outer ring conveniently, when the rotor rotates relative to the stator, the rotor is fixedly connected to the hub bearing inner ring, the hub bearing inner ring rotates in the rotating process of the rotor, and then the rim is driven through the flange, so that the effect of driving the tire is achieved.
Second, be used for controlling the brake electromagnet that the relative brake hub action of brake shoe through fixedly connected with on the brake disc, consequently can come the purpose of braking the tire through the brake shoe, brake electromagnet work realizes that the brake shoe moves relative brake hub, when the brake shoe pastes on the brake hub, because brake hub and wheel hub bearing inner circle fixed connection, thereby realize reaching the purpose of braking wheel hub bearing inner circle, the condition of braking appears when wheel hub bearing inner circle, thereby reach the purpose of braking the tire, when need not brake the tire through the brake electromagnet, the brake shoe is kept away from the brake hub and is removed, when the brake shoe breaks away from on the brake hub, do not brake the tire promptly, consequently, can realize the rotation effect of tire when rotor work.
Thirdly, including fixed connection at the wheel hub bearing outer lane turn to the motor and the first gear of fixed connection on the automobile body suspension through turning to the subassembly, fixedly connected with second gear on the output shaft of turning to the motor, be convenient for realize the effect that the tire turned to, turn to motor work and realize driving the second gear and rotate, because first gear fixed connection is on the automobile body suspension, simultaneously because the loose axle rotation of first gear lower surface fixed connection connects in the drum, because the fixed plate, the centre-to-centre spacing between second gear and the first gear has been realized to the effect of connecting plate and drum is the definite value, consequently, the second gear realizes the relative first gear rotation of second gear at the pivoted in-process, thereby drive the tire through the automobile body suspension and rotate, realize the effect that the tire turned to.
The electric driving wheel assembly of the integrated driving system, the braking system and the steering system integrates the functions of driving, braking and steering.
Drawings
FIG. 1 is a schematic view of an electric drive wheel assembly incorporating a drive system, a brake system, and a steering system;
FIG. 2 is a schematic view of the connection of a steering motor and a tire in an electric drive wheel assembly of an integrated drive system, brake system, and steering system;
FIG. 3 is a schematic view of a support in an electric drive wheel of an integrated drive system, brake system, steering system;
in the figure: 1. a hub bearing; 2. a hub bearing outer race; 3. a hub bearing inner race; 4. a stator; 5. a rotor; 6. a brake disc; 7. a brake hub; 8. a brake electromagnet; 9. a brake shoe; 10. a steering motor; 11. a first gear; 12. a second gear; 13. a stator support; 14. a rotor housing; 15. a card slot; 16. wind guide blades; 17. a support bearing; 18. a seal member; 19. a controller; 20. a heat sink; 21. a heat dissipating fin; 22. a flange; 23. a rim; 24. a tire; 25. a support member; 26. a fixing plate; 27. a connecting plate; 28. a cylinder; 29. a movable shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, in an embodiment of the present invention, an electric driving wheel assembly integrating a driving system, a braking system and a steering system includes a hub assembly, a driving assembly, a braking assembly and a steering assembly;
the hub assembly comprises a hub bearing 1, a hub bearing outer ring 2 and a hub bearing inner ring 3, wherein the hub bearing inner ring 3 is rotatably connected to the inner side of the hub bearing outer ring 2 through the hub bearing 1;
the driving assembly comprises a stator 4 and a rotor 5, the rotor 5 rotates relative to the stator 4, the stator 4 is fixedly connected to the outer ring 2 of the hub bearing, and the rotor 5 is fixedly connected to the inner ring 3 of the hub bearing;
the brake assembly comprises a brake disc 6 and a brake hub 7, the brake hub 7 is fixedly connected with a hub bearing inner ring 3, the brake disc 6 is fixed on a hub bearing outer ring 2, a brake shoe 9 is arranged on the brake disc 6, and a brake electromagnet 8 for controlling the brake shoe 9 to move relative to the brake hub 7 is fixedly connected on the brake disc 6;
the steering assembly comprises a steering motor 10 fixedly connected to the outer ring 2 of the hub bearing and a first gear 11 fixedly connected to a suspension of a vehicle body, a second gear 12 is fixedly connected to an output shaft of the steering motor 10, the second gear 12 is meshed with the first gear 11, and the center distance between the second gear 12 and the first gear 11 is a fixed value.
The master controller receives relevant external signals, the master controller coordinately controls the driving motor controller to control the driving assembly, the master controller coordinately controls the braking assembly controller to control the braking assembly, the master controller coordinately controls the steering assembly controller to control the steering assembly, and finally effective driving, braking and steering execution actions are realized through the driving assembly, the braking assembly and the steering assembly.
When the rotor 5 rotates relative to the stator 4, the hub bearing inner ring 3 rotates during the rotation of the rotor 5 because the rotor 5 is fixedly connected to the hub bearing inner ring 3.
Brake 8 work realizes that brake shoe 9 removes relative brake hub 7, when brake shoe 9 pastes on brake hub 7, because brake hub 7 and wheel hub bearing inner race 3 fixed connection, thereby realize reaching the purpose of brake wheel hub bearing inner race 3, the condition of braking appears in wheel hub bearing inner race 3, when need not brake wheel hub bearing inner race 3 through brake electromagnet 8, brake shoe 9 keeps away from brake hub 7 and removes, when brake shoe 9 breaks away from on brake hub 7, do not have wheel hub bearing inner race 3 promptly, consequently can wheel hub bearing inner race 3 act on rotatoryly.
The steering motor 10 works to drive the second gear 12 to rotate, and the first gear 11 is fixedly connected to the vehicle body suspension, so that the second gear 12 rotates relative to the first gear 11 in the rotating process, and the steering effect is realized.
The stator support 13 is further included, and the stator 4 is fixedly connected to the stator support 13;
Supporting bearings 17 are arranged between the stator support 13 and the left end and the right end of the rotor shell 14, the rotor shell 14 rotates relative to the stator support 13 through the supporting bearings 17, and the rotor shell 14 rotates relative to the stator support 13 conveniently through the supporting bearings 17;
sealing elements 18 are further arranged between the left end and the right end of the stator support 13 and the rotor shell 14, the rotor shell 14 and the stator support 13 form a sealing cavity through the sealing elements 18, the sealing elements 18 are sealing rings or oil seals, and the sealing rings or the oil seals achieve sealing effects at the left end and the right end of the stator support 13 and the rotor shell 14.
Still including the controller 19 that is used for controlling drive assembly and on controller 19 fixed connection's radiator 20, radiator 20 fixed connection is on stator support 13, still fixedly connected with radiating blade 21 on radiator 20, controller 19 fixed connection is on wheel hub bearing outer lane 2, the structure and the theory of operation of controller 19 are prior art, controller 19 is used for controlling the power ware, thereby control drive assembly realizes turning into mechanical energy with the electric energy, radiator 20 is air-cooled radiator, realize the heat exchange through the flow of air.
The hub bearing inner ring 3 is connected with a rim 23 through a flange 22, a tire 24 is mounted on the rim 23, the flange 22 is used for realizing connection between the hub bearing inner ring 3 and the rim 23, the flange 22 is used for driving the rim 23 to rotate when the hub bearing inner ring 3 rotates, and then the rim 23 is used for realizing rotation of the tire 24.
Fixedly connected with support piece 25 on wheel hub bearing outer lane 2, support piece 25 fixed connection is on wheel hub bearing outer lane 2, and the stiff end fixed connection that turns to motor 10 is on wheel hub bearing outer lane 2, turns to the axis of rotation activity of motor 10 and passes support piece 25 and with second gear 12 fixed connection, and support piece 25 swing joint is in the below of first gear 11.
The supporting member 25 comprises a fixed plate 26 on the outer ring 2 of the hub bearing, the fixed plate 26 is fixed on the outer ring 2 of the hub bearing, a connecting plate 27 and a cylinder 28 are fixedly connected on the side wall of the fixed plate 26, the rotating shaft of the steering motor 10 movably penetrates through the connecting plate 27 and is fixedly connected with the second gear 12, the lower surface of the first gear 11 is fixedly connected with a movable shaft 29, the movable shaft 29 is movably connected in the cylinder 28, the steering motor 10 works to drive the second gear 12 to rotate, because the first gear 11 is fixedly connected on the suspension of the vehicle body, and simultaneously because the movable shaft 29 fixedly connected with the lower surface of the first gear 11 is rotatably connected in the cylinder 28, the central distance between the second gear 12 and the first gear 11 is constant due to the action of the fixed plate 26, the connecting plate 27 and the cylinder 28, the second gear 12 rotates relative to the first gear 11 in the rotating process, thereby driving the tyre 24 to rotate through the vehicle body suspension, and realizing the steering function of the tyre 24.
The working method of the electric drive wheel assembly comprises the following specific steps:
the rotor 5 rotates relative to the stator 4, the rotation of the hub bearing inner ring 3 is realized in the process of the rotation of the rotor 5, and the rim 23 is driven through the flange 22, so that the tire 24 is driven;
the brake electromagnet 8 works to realize that the brake shoe 9 moves relative to the brake hub 7, when the brake shoe 9 is attached to the brake hub 7, the brake hub 7 is fixedly connected with the hub bearing inner ring 3, so that the hub bearing inner ring 3 is braked, and when the hub bearing inner ring 3 is braked, the tire 24 is braked;
the steering motor 10 works to drive the second gear 12 to rotate, and the second gear 12 rotates relative to the first gear 11 in the rotating process, so that the tire 24 is driven to rotate through the vehicle body suspension, and the steering effect of the tire 24 is realized.
When the invention is used, when the rotor 5 rotates relative to the stator 4, the rotor 5 is fixedly connected to the hub bearing inner ring 3, so that the hub bearing inner ring 3 rotates in the process of the rotation of the rotor 5, and the rim 23 is driven by the flange 22, thereby achieving the function of driving the tire 24.
The brake electromagnet 8 works to realize that the brake shoe 9 moves relative to the brake hub 7, when the brake shoe 9 is attached to the brake hub 7, because the brake hub 7 is fixedly connected with the hub bearing inner ring 3, the purpose of braking the hub bearing inner ring 3 is realized, when the hub bearing inner ring 3 brakes, the purpose of braking the tire 24 is realized, when the tire 24 is not required to be braked by the brake electromagnet 8, the brake shoe 9 moves away from the brake hub 7, when the brake shoe 9 is separated from the brake hub 7, the tire 24 is not braked, and therefore the rotating effect of the tire 24 when the rotor 5 works can be realized.
The steering motor 10 works to drive the second gear 12 to rotate, because the first gear 11 is fixedly connected to the vehicle body suspension, and simultaneously, because the movable shaft 29 fixedly connected to the lower surface of the first gear 11 is rotatably connected to the cylinder 28, and because the fixed plate 26, the connecting plate 27 and the cylinder 28 act to realize that the center distance between the second gear 12 and the first gear 11 is a fixed value, the second gear 12 rotates relative to the first gear 11 in the rotating process, thereby driving the tire 24 to rotate through the vehicle body suspension, and realizing the steering effect of the tire 24.
"fixedly connected" as described in the present invention means that two parts connected to each other are fixed together, typically by welding, screwing or gluing; "rotationally coupled" means that two components are coupled together and capable of relative motion.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (8)
1. An electric driving wheel assembly integrating a driving system, a braking system and a steering system is characterized by comprising a hub component, a driving component, a braking component and a steering component;
the hub assembly comprises a hub bearing (1), a hub bearing outer ring (2) and a hub bearing inner ring (3), wherein the hub bearing inner ring (3) is rotatably connected to the inner side of the hub bearing outer ring (2) through the hub bearing (1);
the driving assembly comprises a stator (4) and a rotor (5), the rotor (5) rotates relative to the stator (4), the stator (4) is fixedly connected to the outer ring (2) of the hub bearing, and the rotor (5) is fixedly connected to the inner ring (3) of the hub bearing;
the brake assembly comprises a brake disc (6) and a brake hub (7), the brake hub (7) is fixedly connected with a hub bearing inner ring (3), the brake disc (6) is fixed on a hub bearing outer ring (2), a brake shoe (9) is arranged on the brake disc (6), and a brake electromagnet (8) used for controlling the brake shoe (9) to move relative to the brake hub (7) is fixedly connected to the brake disc (6);
the steering assembly comprises a steering motor (10) fixedly connected to a hub bearing outer ring (2) and a first gear (11) fixedly connected to a vehicle body suspension, a second gear (12) is fixedly connected to an output shaft of the steering motor (10), the second gear (12) is meshed with the first gear (11), and the center distance between the second gear (12) and the first gear (11) is a fixed value.
2. An integrated drive, brake and steering system electric drive wheel assembly according to claim 1, further comprising a stator support (13), wherein the stator (4) is fixedly connected to the stator support (13);
the wind-guiding rotor is characterized in that a rotor shell (14) is fixedly connected to the rotor (5), a clamping groove (15) for transmitting output torque is formed in the right end of the rotor shell (14), and a wind-guiding blade (16) is fixedly connected to the left end of the rotor shell (14).
3. An electric drive wheel assembly of an integrated drive system, brake system and steering system as claimed in claim 2, characterized in that support bearings (17) are arranged between the stator support (13) and the left and right ends of the rotor housing (14), and the rotor housing (14) rotates relative to the stator support (13) through the support bearings (17);
sealing elements (18) are further arranged between the stator support (13) and the left end and the right end of the rotor shell (14), and the rotor shell (14) and the stator support (13) form a sealing cavity through the sealing elements (18).
4. An integrated drive system, brake system, steering system's electric drive wheel assembly of claim 2, characterized by, still include the controller (19) that is used for controlling the drive assembly and on controller (19) fixed connection's radiator (20), radiator (20) fixed connection is on stator support (13), still fixed connection has radiating fin (21) on radiator (20).
5. An integrated drive, brake and steering system electric drive wheel assembly according to claim 1, characterized in that the hub bearing inner race (3) is connected to a rim (23) by a flange (22), the rim (23) having a tire (24) mounted thereon.
6. An integrated driving system, braking system, steering system's electric drive wheel assembly according to claim 1, characterized in that, fixedly connected with support piece (25) on wheel hub bearing outer lane (2), support piece (25) fixed connection is on wheel hub bearing outer lane (2), the fixed end fixed connection of steering motor (10) is on support piece (25), the axis of rotation activity of steering motor (10) passes support piece (25) and with second gear (12) fixed connection, support piece (25) swing joint is in the below of first gear (11).
7. An integrated drive system, brake system, steering system's electric drive wheel assembly according to claim 6, characterized in that, support piece (25) includes the fixed plate (26) on wheel hub bearing outer lane (2), fixedly connected with connecting plate (27) and drum (28) on the lateral wall of fixed plate (26), the axis of rotation activity of steering motor (10) passes connecting plate (27) and fixedly connected with second gear (12), the lower surface fixedly connected with loose axle (29) of first gear (11), loose axle (29) swing joint is in drum (28).
8. An electric drive wheel assembly integrating a drive system, a brake system and a steering system as claimed in claim 1, wherein the method of operating the electric drive wheel assembly comprises the steps of:
the rotor (5) rotates relative to the stator (4), the rotation of the inner ring (3) of the hub bearing is realized in the process of the rotation of the rotor (5), and the rim (23) is driven through the flange (22), so that the tire (24) is driven;
the brake electromagnet (8) works to realize that the brake shoe (9) moves relative to the brake hub (7), when the brake shoe (9) is attached to the brake hub (7), the brake hub (7) is fixedly connected with the hub bearing inner ring (3), so that the hub bearing inner ring (3) is braked, and when the hub bearing inner ring (3) is braked, the tire (24) is further braked;
the steering motor (10) works to drive the second gear (12) to rotate, the second gear (12) rotates relative to the first gear (11) in the rotating process, and therefore the tire (24) is driven to rotate through the vehicle body suspension frame, and the steering effect of the tire (24) is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010048962.XA CN111114294A (en) | 2020-01-16 | 2020-01-16 | Electric driving wheel assembly integrating driving system, braking system and steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010048962.XA CN111114294A (en) | 2020-01-16 | 2020-01-16 | Electric driving wheel assembly integrating driving system, braking system and steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111114294A true CN111114294A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010048962.XA Withdrawn CN111114294A (en) | 2020-01-16 | 2020-01-16 | Electric driving wheel assembly integrating driving system, braking system and steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111114294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721553A (en) * | 2021-02-05 | 2021-04-30 | 奈克斯科技股份有限公司 | Device and method for realizing suspension and steering in hub motor center |
| CN113879088A (en) * | 2021-09-30 | 2022-01-04 | 中汽研（天津）汽车工程研究院有限公司 | Drive-by-wire chassis system of intelligent networking test equipment |
-
2020
- 2020-01-16 CN CN202010048962.XA patent/CN111114294A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721553A (en) * | 2021-02-05 | 2021-04-30 | 奈克斯科技股份有限公司 | Device and method for realizing suspension and steering in hub motor center |
| CN113879088A (en) * | 2021-09-30 | 2022-01-04 | 中汽研（天津）汽车工程研究院有限公司 | Drive-by-wire chassis system of intelligent networking test equipment |
| CN113879088B (en) * | 2021-09-30 | 2023-05-12 | 中汽研（天津）汽车工程研究院有限公司 | Drive-by-wire chassis system of intelligent network connection test equipment |
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Application publication date: 20200508 |
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