阅读说明：本技术 一种集成减震及发电的电动轮系统、工作方法及车辆 (Electric wheel system integrating shock absorption and power generation, working method and vehicle ) 是由 朱永强 赵宇 朱俊儒 张平霞 刘硕 姚俊明 宋瑞琦 吴文锦 何秀敏 于 2020-07-17 设计创作，主要内容包括：本公开提出了一种集成减震及发电的电动轮系统、工作方法及车辆,电动轮系统包括车轮、驱动电机、车轮减震器及主减震器,所述主减震器通过车轴固定连接驱动电机的不动部分,用于实现对驱动电机的固定和支撑；所述驱动电机的旋转部分通过车轮减震器与车轮的车轮钢圈连接,用于将驱动电机的驱动力通过车轮减震器传递至车轮。本公开集驱动、减震、发电、制动、阻尼调节五大功能于一体,通过将车轮和驱动电机之间的刚性连接改为柔性连接,增加二级减震,进一步改善车辆的操控性和舒适性,同时减小簧下质量,减小电机受到的振动冲击。(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.)

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.

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.