CN111775615A - Electric wheel system integrating shock absorption and power generation, working method and vehicle - Google Patents
Electric wheel system integrating shock absorption and power generation, working method and vehicle Download PDFInfo
- Publication number
- CN111775615A CN111775615A CN202010693939.6A CN202010693939A CN111775615A CN 111775615 A CN111775615 A CN 111775615A CN 202010693939 A CN202010693939 A CN 202010693939A CN 111775615 A CN111775615 A CN 111775615A
- Authority
- CN
- China
- Prior art keywords
- wheel
- shock absorber
- main
- driving motor
- brake
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
- B60B9/18—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using fluid
- B60B9/24—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using fluid with pistons and cylinders
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
Abstract
The electric wheel system comprises wheels, a driving motor, a wheel damper and a main damper, wherein the main damper is fixedly connected with a fixed part of the driving motor through an axle and used for fixing and supporting the driving motor; the rotating part of the driving motor is connected with a wheel steel ring of the wheel through a wheel damper and is used for transmitting the driving force of the driving motor to the wheel through the wheel damper. This openly collect drive, shock attenuation, electricity generation, braking, five powerful ability in an organic whole are adjusted in the damping, through changing the rigid connection between wheel and the driving motor into flexonics, increase the second grade shock attenuation, further improve the nature controlled and the travelling comfort of vehicle, reduce unsprung mass simultaneously, reduce the vibration impact that the motor received.
Description
Technical Field
The disclosure relates to the technical field of electric wheel systems, in particular to an electric wheel system integrating shock absorption and power generation, a working method and a vehicle.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The electric wheel is a wheel directly driven by a driving motor directly arranged in the wheel, and is also called as a wheel hub motor technology. The transmission parts such as an engine, a gearbox, a clutch, a transmission shaft and the like of the original fuel vehicle are omitted, so that the vehicle structure is simplified. However, because the motor is directly installed with the wheel, the mass of the motor is increased on the basis of the original wheel, which leads to the mass of a new wheel system to be greatly increased, thereby bringing a series of problems:
1. although the mass of the whole vehicle is greatly reduced, the mass below the vehicle shock absorber, referred to as unsprung mass for short, namely the mass of the wheels is greatly increased, and the control, comfort and suspension reliability of the whole vehicle are adversely affected.
2. The precise motor is fixed on the wheel hub, and vibration impact of the wheel caused by uneven road surface is easily transmitted to the motor through the wheel hub, so that the motor is in severe vibration up and down and severe working environment such as water immersion and dustiness along with the wheel for a long time, and the reliability of the motor is reduced.
Disclosure of Invention
In order to solve the problems, the disclosure provides an electric wheel system integrating shock absorption and power generation, a working method and a vehicle, five functions of driving, shock absorption, power generation, braking and damping adjustment are integrated, rigid connection between a wheel and a driving motor is changed into flexible connection, secondary shock absorption is increased, the controllability and the comfort of the vehicle are further improved, unsprung mass is reduced, and vibration impact on the motor is reduced.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
one or more embodiments provide an integrated shock absorption and power generation electric wheel system, including a wheel, a driving motor, a wheel shock absorber, and a main shock absorber, wherein the main shock absorber is fixedly connected with a stationary part of the driving motor through an axle; the rotating part of the driving motor is connected with a wheel steel ring of the wheel through a wheel damper and is used for transmitting the driving force of the driving motor to the wheel through the wheel damper.
One or more embodiments provide a method of operating a shock-absorbing and power-generating integrated electric wheel system, including a driving method, a braking method, a shock-absorbing method, and a power-generating method;
the damping method comprises the following steps:
the wheel is connected to the driving motor through the wheel shock absorber, and the wheel shock is attenuated through the linear reciprocating motion of the wheel shock absorber;
the main shaft of the driving motor is fixedly connected with the axle, and the vibration received by the driving motor is further reduced through the reciprocating motion of the main damping part in the main damper.
One or more embodiments provide a vehicle employing an integrated shock absorbing and power generating electric wheel system as described above.
Compared with the prior art, the beneficial effect of this disclosure is:
according to the flexible connection structure, the wheel shock absorber is adopted between the rim and the driving motor to realize flexible connection, and has the functions of shock absorption and driving force transmission, so that on one hand, the elastic constraint of the rim and the driving motor in the radial direction of the rim is realized, and the shock impact of the driving motor from the rim is relieved; on the other hand, mutual torsion between the rim and the driving motor is realized to a certain extent through elastic constraint, so that the resisting moment applied to the driving motor at the moment of starting is reduced, and the damage to a large-current impact of a vehicle power system is reduced; adopt wheel bumper shock absorber and main bumper shock absorber to constitute second grade shock mitigation system, relative only the traditional vehicle of one-level bumper shock absorber, further improved the controllability and the travelling comfort of vehicle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
Fig. 1 is a structural view of an integrated shock-absorbing and power-generating electric wheel system according to embodiment 1 of the present disclosure;
fig. 2 is an isometric view of a in fig. 1 of the integrated shock absorbing and power generating electric wheel system of embodiment 1 of the present disclosure;
fig. 3 is a schematic structural view of a wheel 1 of embodiment 1 of the present disclosure;
fig. 4 is a schematic structural view of a wheel damper 2 according to embodiment 1 of the present disclosure;
fig. 5 is a schematic structural view of a wheel damper unit 2.4 of embodiment 1 of the present disclosure;
fig. 6 is an exploded view of the structure of a wheel damper unit 2.4 of embodiment 1 of the present disclosure;
FIG. 7 is a schematic structural view of a cylinder liner 2.4.3 of a wheel shock absorber according to embodiment 1 of the present disclosure;
fig. 8 is a schematic structural view of the main damper 6 of embodiment 1 of the present disclosure;
fig. 9 is a structural exploded view of the main damper 6 of embodiment 1 of the present disclosure;
FIG. 10 is a schematic view of the structure in the direction A in FIG. 8 in the extended state of the main shock absorber 6 according to embodiment 1 of the present disclosure;
FIG. 11 is a schematic view of the structure in the direction A in FIG. 8 in a state where the main shock absorber 6 of embodiment 1 of the present disclosure is compressed;
fig. 12 is a schematic structural view of the braking device 4 of embodiment 1 of the present disclosure;
fig. 13 is an exploded view of the structure of the brake device 4 mounted on the brake disc according to embodiment 1 of the present disclosure;
fig. 14 is a structural schematic view of the brake device 4 of embodiment 1 of the present disclosure mounted on a brake disc;
fig. 15 is a sectional view of the brake apparatus 4 of embodiment 1 of the present disclosure mounted on a brake disc;
fig. 16 is a schematic structural view of the drive motor 3 and the axle 5 of embodiment 1 of the present disclosure after being mounted;
fig. 17 is a schematic structural view of a brake caliper 4.2 of embodiment 1 of the present disclosure;
fig. 18 is an exploded view of the structure of an integrated shock absorbing and power generating electric wheel system of embodiment 1 of the present disclosure;
fig. 19 is a sectional view of an integrated shock absorbing and power generating electric wheel system of embodiment 1 of the present disclosure;
wherein: 1. the wheel, 2, the wheel shock absorber, 3, the driving motor, 4, the braking device, 5, the axle, 6 and the main shock absorber;
1.1, a tire, 1.2, a steel ring, 1.3, a brake disc, 1.4 and a wheel damping bracket;
2.1, wheel nuts, 2.2, motor bolts, 2.3, wheel bolts, 2.4 and wheel shock absorber monomers; 2.4.1, a piston rod, 2.4.2, a cylinder barrel, 2.4.3, a cylinder sleeve, 2.4.4, a coil winding, 2.4.5, a return spring, 2.4.6, a sealing ring, 2.4.7, a magnetic sensitive material, 2.4.8, a permanent magnet, 2.4.9, a wire harness, 2.4.10, a rubber limiting block, 2.4.11, a cylinder barrel nut, 2.4.12, a hinged round head, 2.4.13 and a limiting step;
4.1, a brake disc, 4.2, a brake caliper, 4.3, a brake hydraulic cylinder, 4.4, a brake sliding pin, 4.5, a brake bolt, 4.2.1, a first hole position, 4.2.2, an inner side hole, 4.2.3 and a second hole position; 5.1, a brake caliper frame, 5.2 and mounting hole sites;
6.1, a main damping component, 6.2, a main damper lower bracket, 6.3 and a main damper upper bracket; 6.1.1, main shock attenuation barrel, 6.1.2, main shock attenuation piston rod, 6.2.1, guide arm, 6.2.2, lower groove, 6.3.1, go up the horizontal plate, 6.3.2, first through-hole, 6.3.3, the riser, 6.3.4, second through-hole, 6.3.5, the third through-hole, 6.3.6, the lower transverse plate, 6.3.7, fourth through-hole.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.
Example 1
In the technical solution disclosed in one or more embodiments, as shown in fig. 1 to 19, an integrated shock absorption and power generation electric wheel system includes a wheel 1, a driving motor 3, a wheel shock absorber 2 and a main shock absorber 6, wherein the main shock absorber 6 is fixedly connected with a stationary part of the driving motor 3 through an axle 5, and the axle 5 fixes and supports the driving motor 3; the rotating part of the driving motor 3 is connected with a wheel steel ring 1.2 of the wheel through the wheel damper 2, and the driving force of the driving motor 3 is transmitted to the wheel through the wheel damper 2, so that the driving of the wheel is realized.
In this embodiment, the rotating portion of the driving motor 3 is a power output portion, and is connected to a rotor of the motor, and the stationary portion of the driving motor 3 is a stator portion, so as to realize stable support of the motor.
The main shock absorber 6 on the vehicle is used for realizing the fixed connection between the vehicle body of the vehicle and the wheel 1, and can be welded or in other ways to generate immovable reliable connection, and the vibration transmitted from the wheel 1 to other positions of the vehicle body is reduced through the action of the main shock absorber 6.
In the embodiment, the wheel shock absorber 2 is adopted between the rim and the driving motor 3 to realize flexible connection, and the wheel shock absorber 2 has the functions of shock absorption and driving force transmission at the same time, so that the elastic constraint of the rim and the driving motor 3 in the radial direction of the rim is realized, and the shock impact of the driving motor 3 from the rim is relieved; and through this kind of elastic constraint, realize the mutual torsion between rim and the driving motor 3 to a certain extent to reduce the moment of resistance that the driving motor started and received in the twinkling of an eye. The wheel shock absorber 2 and the main shock absorber 6 are adopted to form a secondary shock absorption system, and compared with a traditional vehicle with only a primary shock absorber, the steering performance and the comfort of the vehicle are further improved.
The utility model provides a mode that can realize, driving motor 3's shell is connected with the driving motor rotor and can follows motor rotor and rotate, motor spindle and axletree 5 fixed connection, and driving motor 3's shell and wheel bumper shock absorber 2 fixed connection. In this embodiment, the axle 5 is fixedly connected with the main shaft of the driving motor 3, and does not rotate relatively in the working process, and the housing of the driving motor 3 can rotate around the axle 5. The shell of the driving motor 3 is connected with the steel ring 1.2 through a plurality of wheel shock absorbers 2, so that the wheels can be driven to rotate.
As a typical structure, as shown in fig. 3, which is a specific structure of a wheel 1, as shown in fig. 3, the wheel 1 includes a tire 1.1, a steel rim 1.2, a brake disc 1.3 and a wheel shock-absorbing support 1.4; the tyre 1.1 is fixed on the steel ring 1.2, the disc surface of the brake disc 1.3 and the axis of the steel ring are vertically fixed on the inner wall of the steel ring 1.2; wheel shock absorber support 1.4 is fixed to be set up on the inner wall of steel ring, and wheel shock absorber support is used for dismantling fixed wheel bumper shock absorber monomer 2.4.
In the embodiment, the brake disc 1.3 is fixed with the steel ring 1.2 of the wheel to form the rim, so that the weight of the wheel is reduced, and the brake disc 1.3 can play a role in connecting, fixing and strengthening the steel ring and braking the wheel.
Specifically, the wheel shock absorption supports 1.4 are arranged in a plurality of pairs and oppositely, and the end faces, used for fixing the wheel shock absorbers 2, on all the wheel shock absorption supports 1.4 are perpendicular to the axis of the steel ring and are on the same plane. Preferably, wheel shock absorber support 1.4 equidistant setting, equidistant relative pair sets up, can equally divide the each point to the inner wall of the wheel rim of wheel as far as possible after fixed wheel shock absorber 2, improves vehicle drive power transmission's stability, makes the atress of each wheel shock absorber support 1.4 equalling simultaneously, improves wheel shock absorber support 1.4's life.
Optionally, the wheel shock absorption support 1.4 is arranged as a support base, a through hole is formed in the support base, the support base and the steel ring can be fixed in an integrated mode, welded and the like, and the connecting surface of the support base and the steel ring is in smooth transition.
In some embodiments, the wheel damper arrangement structure may be as shown in fig. 4, the wheel damper 2 includes a plurality of wheel damper units 2.4, one end of each wheel damper unit 2.4 is connected to the rotating component of the driving motor 3, and the other end of each wheel damper unit 2.4 is connected to the wheel damper support 1.4.
Optionally, the connection mode of the two ends of the wheel damper single body 2.4 and the wheel damping support 1.4 or the driving motor 3 can be any connection reliable fixed connection mode, for example, the connection mode can be bolt connection, the two ends of the wheel damper single body 2.4 are respectively provided with a fixing hole, the fixing holes are respectively provided with a wheel bolt 2.3 and a motor bolt 2.2, preferably, the wheel bolt 2.3 can also be provided with a wheel nut 2.1, and the wheel damper single body is connected to the wheel damping support 1.4 through the nut and bolt matching.
In this embodiment, as shown in fig. 1, 3 and 4, one end of the wheel damper single body 2.4 is hinged to the wheel damper bracket 1.4 through a wheel bolt 2.3 and a wheel nut 2.1, and the other end of the wheel damper single body 2.4 is connected to the driving motor 3 through a motor bolt 2.2. Because the wheel damper 2.4 has the characteristic of elastic damping, two ends of the wheel damper 2.4 can move relatively along the axial direction of the damper 2.4, and by utilizing the characteristic, the driving motor 3 can move along the radial direction of the wheel relative to the wheel 1, so that the damping between the wheel 1 and the driving motor 3 is realized, and a primary damping system of the electric wheel system is formed.
In other embodiments, the power generation device is disposed inside the wheel damper single body 2.4, the power generation device comprises a permanent magnet 2.4.8 and a coil winding 2.4.4, and the permanent magnet 2.4.8 and the coil winding 2.4.4 are respectively disposed on components which realize relative reciprocating movement inside the wheel damper single body 2.4.
Because the vehicle is at the in-process of traveling, the rotation of wheel makes wheel bumper shock absorber 2 around axletree 5, receives the effect of gravity below the main shaft axis and is compressed, is released above the main shaft axis, and there is reciprocating motion in the shock attenuation part of every wheel bumper shock absorber monomer 2.4 inside, and is optional, and this embodiment can realize the conversion of mechanical energy to the electric energy through setting up power generation facility, improves the utilization ratio of energy, realizes environmental protection and energy saving.
Specifically, the wheel damper single body 2.4 may adopt an internal structure as shown in fig. 5-7, the wheel damper single body 2.4 includes a cylinder 2.4.2, a piston rod 2.4.1 telescopically disposed in the cylinder 2.4.2, a part of the piston rod 2.4.1 in the cylinder 2.4.2 is connected with a permanent magnet 2.4.8, a part of the cylinder 2.4.2 opposite to the permanent magnet is provided with a coil winding 2.4.4, and a magnetic sensitive material 2.4.7 is disposed in a matching gap between the cylinder 2.4.2 and the piston rod 2.4.1 or the permanent magnet 2.4.8.
The wheel damper 2 is a power generation type damper, vibration can be converted into electric energy through a built-in power generation assembly, and energy can be saved; meanwhile, the ECU of the vehicle controller transmits a control signal to the shock absorber through a wire bundle according to the road condition or the load condition detected by the sensor, and plays a role in adjusting the damping effect of the shock absorber by adjusting the power generation capacity. In addition, vibration is converted into electric energy, so that the problems of heating and oil leakage of the traditional hydraulic shock absorber are reduced.
Optionally, the power output end of the coil winding 2.4.4 is connected to an electric energy storage device or directly supplies power, and may be directly connected to a storage battery on the vehicle through a wire harness 2.4.9. The cylinder barrel 2.4.2 is internally provided with a coil winding 2.4.4, the inner wall of the cylinder barrel 2.4.2 can be provided with a groove, and the coil winding 2.4.4 is embedded in the groove.
Optionally, in order to realize the reciprocating linear motion of the piston rod 2.4.1 and the cylinder barrel 2.4.2, the inner wall of the cylinder barrel 2.4.2 is provided with a cylinder sleeve 2.4.3, the cylinder sleeve 2.4.3 and the inner side of the cylinder barrel form an interference fit, the lower end of the piston rod 2.4.1 is provided with a disc, the disc and the inner wall of the cylinder sleeve 2.4.3 are in clearance fit, and the permanent magnet 2.4.8 is connected to the disc at the lower end of the piston rod 2.4.1 through threads.
Optionally, the piston rod 2.4.1 and the cylinder barrel 2.4.2 are in clearance fit and can perform reciprocating linear motion, and a sealing ring 2.4.6 is arranged at the clearance fit position to realize sealing of the cylinder barrel 2.4.2.
The cylinder 2.4.2 can be integrated into one piece's structure, also can set up to the structure of components of a whole that can function independently, and this embodiment cylinder 2.4.2 includes interconnect's cylinder body and cylinder nut 2.4.11, cylinder nut 2.4.11 can adopt threaded connection with the cylinder body, and split type connection structure is convenient for fill damping material and be convenient for equipment and maintenance. The inner chamber of cylinder is formed to cylinder body and cylinder nut, and cylinder nut 2.4.11 sets up the bottom at the cylinder body.
The magnetic sensitive material 2.4.7 is a liquid medium and is filled in a sealing cavity formed by the cylinder sleeve 2.4.3, the piston rod 2.4.1 and the cylinder nut 2.4.11.
The impact of vibrations is reduced through reciprocating motion to piston rod 2.4.1, can realize through connecting reset spring 2.4.5, as further improvement, still including setting up reset spring 2.4.5 in piston rod 2.4.1 lower extreme disc bottom surface, the bottom surface of piston rod 2.4.1 lower extreme disc is connected to reset spring 2.4.5's one end, and the up end of cylinder nut 2.4.11 is connected to the reset spring 2.4.5 other end, set up the recess on the cylinder nut 2.4.11, be provided with rubber stopper 2.4.10 in the recess, the rubber stopper sets up between permanent magnet 2.4.8 and cylinder nut 2.4.11.
The rubber limiting block 2.4.10 is used for limiting the length of the piston rod 2.4.1 entering the cylinder barrel 2.4.2, furthermore, a limiting step 2.4.13 can be arranged on the cylinder sleeve 2.4.3 on the inner wall of the cylinder barrel of the wheel shock absorber, the limiting step 2.4.13 is located above the lower end disc of the piston rod 2.4.1, the piston rod penetrates through a center hole of the limiting step 2.4.13, the matching relation is clearance fit, the maximum position of upward movement of the lower end disc of the piston rod 2.4.1 is limited through the limiting step 2.4.13, and limitation of the extending length of the piston rod 2.4.1 is achieved. On the other hand, the limit step 2.4.13 and the cylinder barrel 2.4.2 have the function of keeping the piston rod 2.4.1, so that the radial movement of the piston rod is limited, and the looseness is reduced. Holes are arranged around the center hole of the limit step 2.4.13, and the magnetic sensitive material can freely pass through the holes.
Every wheel bumper shock absorber monomer 2.4 of this embodiment is equipped with stop device, adopts the spacing step 2.4.13 on having elastic rubber stopper 2.4.10 and cylinder liner 2.4.3, can realize that limited torsion each other between rim and the driving motor 3, avoids the damage of the system that too big angular displacement leads to between rim and the driving motor 3.
In order to realize the connection of the two ends of the wheel shock absorber monomer 2.4 and the wheel shock absorption support 1.4 or the driving motor 3, the piston rod 2.4.1 is provided with a hinged round head 2.4.12, and the corresponding cylinder nut 2.4.11 can also be provided with a fixing hole.
The main shock absorber 6 can adopt the structure shown in fig. 8-11, and comprises a main shock absorbing component 6.1, a main shock absorber lower bracket 6.2 and a main shock absorber upper bracket 6.3, wherein one end of the main shock absorbing component 6.1 is fixedly connected with the main shock absorbing lower bracket 6.2, the other end of the main shock absorbing component 6.1 is fixedly connected with the main shock absorber upper bracket 6.3, the main shock absorbing upper bracket 6.3 is slidably connected with the main shock absorber lower bracket 6.2, the main shock absorber lower bracket 6.2 is fixedly connected with an axle 5 for fixing the wheel 1, and the main shock absorber upper bracket 6.3 is fixedly connected with a frame of the vehicle.
Optionally, the main damping component 6.1 may adopt an internal structure the same as that of the wheel damper unit 2.4, or may adopt a power generation type damper, that is, may adopt a structure as shown in fig. 5, and both ends of the main damping component are respectively provided with a structure matching with the main damper lower bracket 6.2 and the main damper upper bracket 6.3, and the size of the main damping component is set according to the damping performance to be realized and the size of the setting space.
Specifically, the main damping part 6.1 comprises a main damping cylinder 6.1.1 and a main damping piston rod 6.1.2 which can relatively reciprocate; the main shock absorber lower bracket 6.2 comprises a fixed base and at least two guide rods 6.2.1 fixedly arranged on the fixed base; the main shock absorber upper bracket 6.3 comprises a vertical plate 6.3.3, an upper transverse plate 6.3.1 and a lower transverse plate 6.3.6, wherein the upper transverse plate 6.3.6 is provided with a third through hole 6.3.5 for allowing a piston rod 6.1.2 of the main shock absorbing component to pass through, the upper transverse plate 6.3.1 is provided with an upper groove at a position opposite to the third through hole 6.3.5, the upper transverse plate 6.3.1 and the lower transverse plate 6.3.6 are respectively provided with a first through hole 6.3.2 and a fourth through hole 6.3.7 for penetrating through a guide rod 6.2.1, a fixed base of the main shock absorber lower bracket 6.2 is provided with a lower groove 6.2.2, and the upper groove of the upper transverse plate 6.3.1 and the lower groove 6.2.2 on the fixed base of the upper transverse plate 6.2 are respectively used for fixing two ends of the main shock absorbing component 6.1.
Furthermore, the main shock absorber upper bracket 6.3 is further provided with a second through hole 6.3.4, and the main shock absorber upper bracket can be fixed with the frame through the second through hole 6.3.4 and bolts and nuts. The axle 5 is provided with a mounting hole site 5.2 which is fixedly connected with a guide rod 6.2.1 of the lower bracket 6.2 of the main shock absorber, and the guide rod 6.2.1 can directly pass through the mounting hole site 5.2 to realize the fixed connection of the two.
The main damping part 6.1 of this embodiment is installed between main bumper shock absorber upper bracket 6.3 and main bumper shock absorber lower carriage 6.2, constitutes electronic wheel system's second grade shock mitigation system, has formed the two-stage shock attenuation with wheel bumper shock absorber 2, has improved the damping performance of vehicle, improves the travelling comfort of driving. In the embodiment, the main shock absorber 6 is integrated on the wheel, the number of connecting parts between the wheel and the frame is reduced, the upper bracket 6.3 of the main shock absorber can be fixed with the frame through bolts, and the process of assembling the automobile is simplified.
As a further technical solution, the electric wheel system further includes a braking device 4, the braking device is disposed on the wheel 1, and may adopt a structure as shown in fig. 12-17, the braking device includes a brake caliper 4.2, a brake cylinder 4.3, a brake sliding pin 4.4 and two brake discs 4.1, the two brake discs 4.1 are respectively fixed on the inner wall of the brake caliper 4.2 through the brake sliding pin 4.4, the two brake discs 4.1 are disposed on both sides of the disc surface of the brake disc 1.3 on the wheel, the brake cylinder 4.3 is connected with the two brake discs 4.1, and is configured to drive the two brake discs 4.1 to relatively approach or move away in the brake caliper 4.2, so as to clamp the brake disc 1.3 to realize braking.
Specifically, the specific structure of the brake caliper 4.2 is adapted to the shape of the mating component, and may include two sectors that are oppositely disposed and spaced by a set distance, as shown in fig. 17, the cross section may be U-shaped, the bottom end of the brake caliper 4.2 is provided with a brake bolt 4.5, the axle 5 is provided with a brake caliper 5.1, and the brake caliper 5.1 is connected to the axle 5 through the brake bolt 4.5, so as to implement the arrangement of the braking device on the wheel system.
To ensure the strength of the part, the brake disk 4.1 can be formed integrally with the brake slide 4.4. The brake caliper 4.2 is provided with a first hole site 4.2.1, an inner side hole 4.2.2 and a second hole site 4.2.3, the first hole site 4.2.1 of the brake caliper 4.2 and the brake sliding pin 4.4 form clearance fit, so that the brake disc 4.1 can axially move along the first hole site 4.2.1 through the brake sliding pin 4.4, the brake hydraulic cylinder 4.3 can be installed on the inner side hole 4.2.2, and the second hole site 4.2.3 is provided with a brake bolt 4.5.
The embodiment integrates the brake assembly on the axle 5, the axle 5 is connected on the vehicle body through the main shock absorber 6, and the brake assembly is not fixed on the wheel 1, so that the mass of the wheel 1 is further reduced, the inertia of the wheel is reduced, and the controllability and the comfort of the vehicle are improved.
Example 2
The embodiment also provides a working method based on the wheel system, which comprises the following steps:
the driving method specifically comprises the following steps: the driving motor 3 is electrified, the shell of the driving motor 3 drives the wheel shock absorber 2 to rotate around the main shaft, the wheel shock absorber 2 drives the outer steel ring 1.2 and the tire 1.1 to rotate, the tire 1.1 is in contact with the ground, forward or backward driving force is generated, and the driving requirement of the vehicle is met.
The main shaft of the axle 5 and the main shaft of the driving motor 3 are fixedly connected, so that the axle and the main shaft cannot rotate relatively in the working process, and the shell of the driving motor 3 can rotate around the axle 5. The shell of the driving motor 3 is connected with the steel ring 1.2 through a plurality of wheel shock absorbers 2, so that the wheels can be driven to rotate.
The wheel system braking method comprises the following steps:
the brake disc 1.3 and the steel ring 1.2 are fixed together and can rotate together with the steel ring 1.2.
When braking is carried out, the brake hydraulic cylinders 4.3 on two sides of the brake caliper 4.2 extend out to push the two brake discs 4.1 to move towards the middle along the direction of the brake sliding pin 4.4, and the brake discs 1.3 are extruded to generate braking force to realize speed reduction;
when the brake is unloaded, the brake hydraulic cylinder 4.3 on the brake caliper 4.2 is retracted, and the brake disc 4.1 is driven to be separated from the brake disc 1.3;
the oil pressure is established by a brake pump and is transmitted to a brake action element through a brake oil path, the brake action element in the embodiment is a brake hydraulic cylinder 4.3, and an oil path system for braking can adopt an existing brake system, which is not described herein again.
The secondary damping method of the wheel system comprises the following steps:
1) the wheel 1 is connected to a driving motor 3 through a wheel damper 2, and the wheel vibration is attenuated through the linear reciprocating motion of the wheel damper;
2) the main shaft of the drive motor 3 is fixedly connected with an axle 5, and the wheel vibration is further attenuated through the reciprocating motion of a main damping part 6.1 in the main damper 6.
Damping principle of the wheel damper 2: the piston rod 2.4.1 of the wheel shock absorber monomer 2.4 is hinged with the shell of the driving motor 3 through the motor bolt 2.2, and the cylinder 2.4.2 of the wheel shock absorber 2.4 is hinged and fixed with the wheel shock absorption support 1.4 in the same way. And whether the vehicle is stationary or in motion, is subject to the influence of gravity. The wheel damper 2.4 above the axis of the main shaft of the driving motor 3 will be stretched radially, while the wheel damper 2.4 below the axis will be compressed radially, so that the axis of the main shaft of the driving motor 3 will be lower than the central axis of the steel ring 1.2 in the vertical direction.
When the drive motor 3 is operated, the wheel damper 2 is not only compressed and stretched as described above. Under the action of torque, the two hinged parts will produce angular displacement in the same direction as the rotation torque of the driving motor.
Compared with the traditional wheel hub motor adopting rigid connection, the wheel shock absorber 2 is added between the driving motor 3 and the wheel 1 to serve as a primary shock absorption device, so that shock is absorbed more thoroughly, and the driving comfort is improved. However, such elastic coupling tends to generate a larger amount of deformation while exerting a shock absorbing effect. Even if the traditional rigidly-connected hub motor deforms, the magnitude of the deformation is on the microscopic level, so that the requirements of support and torque can be easily met. The excessive deformation can cause unstable running and reduce the power output efficiency, and even more, the problems that the wheels and the driving motor 3 are scraped to cause damage, the running cannot be performed and the like during heavy load are caused.
The wheel damper 2 provided in the present embodiment is modified as follows: (1) a limiting device is arranged in the cylinder body of the wheel shock absorber monomer 2.4, and the maximum stretching and compressing stroke does not exceed the allowed limit value; (2) the wheel damper sets up to a plurality of in pairs, can realize the installation and higher bending resistance and shear rigidity for the size of wheel damper 2 is as little as possible. (3) The wheel damper 2 has sufficient rigidity to avoid significant eccentric displacement between the drive motor 3 and the wheel 1 when the load changes.
Damping principle of the main damper 6: the main shock absorber lower bracket 6.2 is fixedly connected with the axle 5, and a first through hole 6.3.2 on the main shock absorber upper bracket 6.3 and a guide rod 6.2.1 of the main shock absorber lower bracket form clearance fit and can reciprocate linearly along the direction of the guide rod 6.2.1 of the main shock absorber lower bracket. The main damping part 6.1 is arranged between the main damper lower bracket 6.2 and the main damper upper bracket 6.3 to limit the speed and the stroke of the reciprocating linear motion, and the main damper upper bracket 6.3 is directly and rigidly connected with the vehicle frame to form a secondary damping system of the vehicle.
The power generation method of the wheel system comprises the following steps:
the wheel shock absorber 2 and the main shock absorber 6 receive the shock, and the piston rod reciprocates in the cylinder barrel;
the piston rod drives the permanent magnet 2.4.8 to reciprocate, so that the coil winding cuts magnetic lines of force to generate electricity;
further, the current change in the coil winding 2.4.4 is controlled, the interaction of the coil winding and the permanent magnet 2.4.8 enables the magnetic field between the cylinder sleeve and the piston rod to change, and the fluidity and the shearing resistance of the magneto-sensitive material 2.4.7 are changed; specifically, the flow speed of the magnetic sensitive material 2.4.7 at the gap between the disc at the lower end of the piston rod 2.4.1 and the cylinder sleeve 2.4.3 is changed, so that the active adjustment of the damping of the shock absorber is realized.
The power generation principle is as follows: during the driving process of the wheel, the steel ring 1.2 can generate vibration and transmit the vibration to the wheel shock absorber 2 and the main shock absorber 6 due to the influence of bumping and self weight. In the process of compression and rebound of the shock absorber, the piston rod 2.4.1 can continuously drive the permanent magnet 2.4.8 and the coil winding 2.4.4 embedded in the cylinder body to generate relative motion for cutting magnetic lines, the coil winding 2.4.4 generates electric energy, and the electric energy is stored in the storage battery through the wire harness 2.4.9.
The shock absorber adopts a magnetic sensitive material as a shock absorption medium, and the material of the traditional hydraulic medium is abandoned, so that the problems of heating, oil leakage and the like are reduced. Meanwhile, in order to realize the active adjustment of the change of the wheel shock absorber, the coil winding 2.4.4 can be controlled by the electric signal of the ECU according to the performance requirement of the suspension on the automobile, so that different magnetic field effects can be generated. The change of the fluidity and the shearing resistance of the magnetic sensitive material 2.4.7 in the wheel shock absorber is realized, so that the active adjustment of the damping of the wheel shock absorber is realized through the change of the flow speed at the gap between the disc at the lower end of the piston rod 2.4.1 and the cylinder sleeve 2.4.3, and the driving requirements under different conditions are met. A limiting step 2.4.13 at the upper end of the cylinder sleeve and a rubber limiting block 2.4.10 below the cylinder sleeve play a limiting role together. The return spring 2.4.5 plays a role in buffering and returning in the whole process.
Example 3
The embodiment provides a vehicle, and wheels of the vehicle adopt the electric wheel system integrating shock absorption and power generation, which is disclosed in the embodiment 1. The electric wheel system realizes the functions of driving, shock absorption, power generation, braking, damping adjustment and the like of the vehicle.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. The utility model provides an electronic round of system of integrated shock attenuation and electricity generation which characterized by: the shock absorber comprises wheels, a driving motor, a wheel shock absorber and a main shock absorber, wherein the main shock absorber is fixedly connected with the fixed part of the driving motor through an axle; the rotating part of the driving motor is connected with a wheel steel ring of the wheel through a wheel damper and is used for transmitting the driving force of the driving motor to the wheel through the wheel damper.
2. The integrated shock absorbing and power generating electric wheel system as claimed in claim 1, wherein: the wheel comprises a tire, a steel ring, a brake disc and a wheel damping bracket; the tyre is fixed on the steel ring, and the disc surface of the brake disc and the axis of the steel ring are vertically fixed on the inner wall of the steel ring; the wheel shock absorption support is fixedly arranged on the inner wall of the steel ring and used for detachably fixing the wheel shock absorber;
or the wheel shock absorption supports are arranged in pairs, and the end surfaces of the wheel shock absorbers on all the wheel shock absorption supports are perpendicular to the axis of the steel ring and are on the same plane;
or the shell of the driving motor is connected with the rotor of the driving motor, the main shaft of the motor is fixedly connected with the axle, and the shell of the driving motor is fixedly connected with the wheel shock absorber.
3. The integrated shock absorbing and power generating electric wheel system as claimed in claim 1, wherein: the wheel shock absorber comprises a plurality of wheel shock absorber monomers, one end of each wheel shock absorber monomer is connected with a rotating part of the driving motor, and the other end of each wheel shock absorber monomer is connected with the wheel shock absorbing support;
or, a power generation device is arranged in the wheel damper monomer and comprises a permanent magnet and a coil winding, and the permanent magnet and the coil winding are respectively arranged on a part which realizes relative reciprocating movement in the wheel damper monomer.
4. The integrated shock absorbing and power generating electric wheel system as claimed in claim 3, wherein: the wheel damper monomer comprises a cylinder barrel and a piston rod which is arranged in the cylinder barrel in a telescopic mode, the part, in the cylinder barrel, of the piston rod is connected with a permanent magnet, the part, opposite to the permanent magnet, of the cylinder barrel is provided with a coil winding, and a magnetic sensitive material is arranged in a fit clearance between the cylinder barrel and the piston rod or the permanent magnet;
or the inner wall of the cylinder barrel of the wheel shock absorber monomer is also provided with a cylinder sleeve, the lower end of the piston rod is provided with a disc, the disc is in clearance fit with the inner wall of the cylinder sleeve, and the permanent magnet is connected to the disc at the lower end of the piston rod;
or the cylinder barrel is of a split structure, the cylinder barrel comprises a cylinder barrel body and a cylinder barrel nut which are connected with each other, and the cylinder barrel body and the cylinder barrel nut form an inner cavity of the cylinder barrel;
the piston rod is characterized by also comprising a return spring arranged on the bottom surface of a disc at the lower end of the piston rod, the other end of the return spring is connected with the upper end surface of a cylinder nut, a groove is formed in the cylinder nut, a rubber limiting block is arranged in the groove, and the rubber limiting block is arranged between the permanent magnet and the cylinder nut;
or the cylinder sleeve on the inner wall of the cylinder barrel of the wheel shock absorber monomer is also provided with a limiting step, and the limiting step is arranged above the disc at the lower end of the piston rod.
5. The integrated shock absorbing and power generating electric wheel system as claimed in claim 1, wherein: the main shock absorber comprises a main shock absorption part, a main shock absorber lower support and a main shock absorber upper support, one end of the main shock absorption part is fixedly connected with the main shock absorber lower support, the other end of the main shock absorption part is fixedly connected with the main shock absorber upper support, the main shock absorber upper support is connected with the main shock absorber lower support in a sliding mode, the main shock absorber lower support is fixedly connected with an axle for fixing wheels, and the main shock absorber upper support is fixedly connected with a vehicle frame of a vehicle.
6. The integrated shock absorbing and power generating electric wheel system as claimed in claim 5, wherein: the main damping part adopts the same internal structure as the wheel damper single body.
7. The integrated shock absorbing and power generating electric wheel system as claimed in claim 1, wherein: the electric wheel system also comprises a braking device, wherein the braking device comprises a brake caliper, a braking hydraulic cylinder, a braking sliding pin and two brake discs, the two brake discs are respectively fixed on the inner wall of the brake caliper through the braking sliding pin, the two brake discs are arranged on two sides of the disc surface of the brake disc on the wheel, and the braking hydraulic cylinder is connected with the two brake discs and is used for driving the two brake discs to relatively move away from or approach to the inside of the brake caliper;
or the brake caliper comprises two sectors which are oppositely arranged and spaced at a set distance, and the section of the brake caliper is U-shaped.
8. A working method of an electric wheel system integrating shock absorption and power generation is characterized in that: the method comprises a driving method, a braking method, a damping method and a power generation method;
the damping method comprises the following steps:
the wheel is connected to the driving motor through the wheel shock absorber, and the wheel shock is attenuated through the linear reciprocating motion of the wheel shock absorber;
the main shaft of the driving motor is fixedly connected with the axle, and the vibration of the wheels is further attenuated through the reciprocating motion of the main damping part in the main damper.
9. The method of claim 8, further comprising:
the power generation method comprises the following steps: the wheel shock absorber and the main shock absorber receive shock, and the piston rod reciprocates in the cylinder barrel; the piston rod drives the permanent magnet to reciprocate, so that the coil winding cuts magnetic lines of force to generate electricity;
or the driving method comprises the following steps: the driving motor is electrified, the shell of the driving motor drives the wheel shock absorber to rotate around the main shaft, the wheel shock absorber drives the steel ring and the tire to rotate, and the tire is in contact with the ground to generate forward or backward driving force;
or the braking method comprises the following steps:
when braking, the brake hydraulic cylinders on two sides of the brake caliper extend out to push the two brake discs to move towards the middle along the brake sliding pin, so that the brake discs are extruded to generate braking force, and speed reduction is realized;
when the brake is unloaded, the brake hydraulic cylinder on the brake caliper is retracted, and the brake disc is driven to be separated from the brake disc.
10. A vehicle, characterized by: an integrated shock absorbing and power generating electric wheel system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693939.6A CN111775615A (en) | 2020-07-17 | 2020-07-17 | Electric wheel system integrating shock absorption and power generation, working method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693939.6A CN111775615A (en) | 2020-07-17 | 2020-07-17 | Electric wheel system integrating shock absorption and power generation, working method and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111775615A true CN111775615A (en) | 2020-10-16 |
Family
ID=72763392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010693939.6A Withdrawn CN111775615A (en) | 2020-07-17 | 2020-07-17 | Electric wheel system integrating shock absorption and power generation, working method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111775615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928885A (en) * | 2021-01-29 | 2021-06-08 | 柳州旭唐环保科技有限公司 | Automatic power generation device for automobile tire running |
-
2020
- 2020-07-17 CN CN202010693939.6A patent/CN111775615A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928885A (en) * | 2021-01-29 | 2021-06-08 | 柳州旭唐环保科技有限公司 | Automatic power generation device for automobile tire running |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101929520A (en) | Electrohydraulic energy regenerative vibration absorber | |
| CN109080401B (en) | Hub motor vibration absorption system and working method thereof | |
| KR20100093803A (en) | Automotive regenerative damping apparatus | |
| CN204961669U (en) | Liquid electricity is presented can formula semi active contro shock absorber system | |
| CN108061125B (en) | A kind of working method of the automobile absorber power generation mechanism based on hydraulic tube | |
| CN104976266A (en) | Fluid electric energy feedback type semi-active control shock absorber system | |
| CN111572331B (en) | Electric wheel magneto-rheological torsion damper | |
| CN111775615A (en) | Electric wheel system integrating shock absorption and power generation, working method and vehicle | |
| CN110005747B (en) | Integrated electromagnetic shock absorber | |
| CN116279770A (en) | Wheel independent steering structure based on hub motor | |
| CN108468625B (en) | Suspension vibration energy driving braking system | |
| CN2678945Y (en) | Double crossbar suspension-twisted bar spring-modularized structure of electric wheel | |
| CN211335483U (en) | Suspension device | |
| CN211501456U (en) | Intelligent shock absorber with power regulating valve | |
| CN210760232U (en) | Electric wheel with in-wheel vibration reduction function | |
| CN210733738U (en) | Energy feedback type hydraulic suspension for hub motor driven automobile | |
| CN210760263U (en) | Multi-rod motor type automobile suspension vibration energy recovery device | |
| CN110867546B (en) | Battery buffer stop that electric automobile used | |
| CN114110077A (en) | Automobile spring shock absorber | |
| CN210101973U (en) | Aircraft landing gear with buffeting resisting device | |
| CN111038202A (en) | A independently hang mechanism and heavy load AGV for AGV | |
| CN112013036A (en) | Automobile torsional vibration damping device | |
| CN113147364A (en) | Active vibration reduction magnetorheological suspension device used in electric wheel | |
| CN218594129U (en) | Electric wheel integrating in-wheel active vibration reduction and electric control function and vehicle | |
| CN105059077B (en) | Wheeled vehicle suspension arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201016 |
|
| WW01 | Invention patent application withdrawn after publication |