CN212446943U - Electrically driven wheel based on non-pneumatic tire - Google Patents
Electrically driven wheel based on non-pneumatic tire Download PDFInfo
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- CN212446943U CN212446943U CN202020360644.2U CN202020360644U CN212446943U CN 212446943 U CN212446943 U CN 212446943U CN 202020360644 U CN202020360644 U CN 202020360644U CN 212446943 U CN212446943 U CN 212446943U
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Abstract
The utility model discloses an electrically driven wheel based on non-pneumatic tire, include: an electric hub, a non-pneumatic tire and a fastening housing; the non-pneumatic tire is of an annular structure, the electric hub is of a cylindrical structure, and the non-pneumatic tire is coaxially sleeved on the periphery of the electric hub and is in interference fit with the electric hub; the fastening outer cover is of a cylindrical structure with an opening at one end, is coaxially embedded into the non-pneumatic tire and is fixedly connected with the electric hub through a fastening piece; the utility model discloses a wheel combines electronic wheel hub and non-pneumatic tire as an organic whole, can enough make every wheel all have better independent driving force, can effectively prevent again to blow out and take place with the circumstances such as taking off the child, has effectively alleviateed unsprung mass simultaneously to be favorable to improving mobility, travelling comfort and the operational reliability of vehicle.
Description
Technical Field
The utility model relates to the technical field of vehicles, concretely relates to electric drive wheel based on non-pneumatic tire.
Background
In recent 20 years, with the continuous development of electrification and electric drive technologies, the volume power density of the vehicle motor is continuously improved, and the electric drive wheel integrating the motor into the rim attracts close attention and a large amount of research and development investment from home and abroad. The wheel torque and the rotating speed can be independently and accurately controlled, so that high maneuverability can be realized, and the power system is arranged in the rim, so that the space in the vehicle is saved, and the modularization and the integral layout of the vehicle are facilitated, therefore, the electric drive wheel products emerge from the civil market to the military field. In the civil field, there are electrically driven wheels of outer rotor solutions represented by Protean corporation; in the field of military and special vehicles, in order to improve the torque density of an electrically driven wheel and reduce the volume and the mass, the technical scheme that an inner rotor motor is matched with a planetary reducer is mostly adopted.
In order to get rid of the risk of tire burst and improve the maintainability of the vehicle, many tire manufacturers at home and abroad successively provide non-pneumatic tires based on elastic materials such as high-performance rubber, high-molecular composite materials and the like, most of which are based on elastic topological support structures such as Tweel and Uptis provided by michelin corporation and TurfCommand provided by Goodyne corporation. Non-pneumatic tires have found leading use in special purpose vehicles such as all terrain vehicles, fork lift trucks, and the like. However, these are vehicles driven by conventional internal combustion engines and do not travel at high speeds, and there is little use of non-pneumatic tires in high-speed electrically driven vehicles, particularly in high-speed electrically driven wheel assemblies.
On the one hand, although extensive progress has been made around the development of electrically driven wheels, the electrically driven wheels currently available on the market for four-wheeled or more vehicles are based on conventional pneumatic tire solutions. The unsprung mass is increased by the hub motor, the reduction mechanism and other parts, which seriously affect the ride comfort and the handling stability of the vehicle, and the characteristics of the conventional pneumatic tire are difficult to further improve the adverse effect of the unsprung mass. More seriously, the increased unsprung mass can bring more severe road shock vibration, thereby further promoting the risk of tire burst and influencing the running safety of the vehicle, which is also an unavoidable problem of pneumatic tires.
On the other hand, the existing non-pneumatic tires are not designed to be optimized in terms of application to medium and heavy special vehicles and high-power electric drive wheels, so that the following problems exist:
1. the running working condition of the special vehicle is harsh, and particularly, when the special vehicle does complex high-mobility actions, the wheels are subjected to the comprehensive actions of road surface vertical force, longitudinal force, lateral force, aligning moment and the like, so that the amplitude is large and the change is severe; the traditional pneumatic tire realizes the tight fit between the tire and a rim through the expansion of high-pressure gas in the tire, and is easy to have the accident of 'tire release', while the non-pneumatic tire needs a special mounting and fastening device to realize the firm and reliable fit between the tire and an electric driving wheel hub and is convenient to detach;
2. when the wheel turns and bumps and uneven road surfaces are encountered, the tread is difficult to be always in full parallel contact with the ground due to the factors such as caster angle, camber angle and the like of a wheel kingpin. In this case, the pneumatic tire can achieve sufficient deformation of the tread by the free fluidity of the high-pressure gas that is "isotropic" in the tire, thereby achieving sufficiently good contact with the ground; most non-pneumatic tires are supported and damped by elastic materials with special topological structures, the anisotropy of the topological support structures is not favorable for the sufficient and good contact between the tire treads and the ground, and the adhesion performance of the tires is poor;
3. the unsprung mass is added to the hub motor and the transmission mechanism in the electrically driven wheel, which brings adverse effects to the ride comfort of the vehicle and the adhesion performance of the wheel, and the existing non-pneumatic tire structure does not develop special consideration and optimization design for the factor.
In addition, most of the current non-pneumatic tire designs are only suitable for medium and low speed vehicles (the vehicle speed is lower than 60km/h) in special driving scenes, such as single-passenger all-terrain vehicles and loading and unloading forklifts, and for high speed vehicles (the maximum vehicle speed can reach 100km/h) driving on complex roads, such as military tactical vehicles and police anti-riot vehicles, the non-pneumatic tires are not completely competent due to the limitations of damping performance, adhesion performance, mounting firmness and the like.
Therefore, in order to achieve a sufficient matching bond between the non-pneumatic tire and the electrically driven wheel to improve the overall performance of the vehicle and make it more suitable for applications on complex roads and at higher driving speeds, it is necessary to design an electrically driven wheel based on a non-pneumatic tire.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electrically driven wheel based on non-pneumatic tire can enough make every wheel all have better independent driving capability, can effectively prevent again to blow out, has effectively alleviateed unsprung mass simultaneously to be favorable to improving mobility, travelling comfort and the operational reliability of vehicle.
The technical scheme of the utility model is that: a non-pneumatic tire based electrically driven wheel comprising: an electric hub, a non-pneumatic tire and a fastening housing; the non-pneumatic tire is of an annular structure, the electric hub is of a cylindrical structure, and the non-pneumatic tire is coaxially sleeved on the periphery of the electric hub and is in interference fit with the electric hub; the fastening outer cover is of a cylindrical structure with an opening at one end, is coaxially embedded into the non-pneumatic tire and is fixedly connected with the electric hub through a fastening piece.
Preferably, the motorized hub comprises: the brake caliper, the disc brake, the high-speed inner rotor permanent magnet synchronous motor, the planetary speed reducing mechanism and the hub outer ring are arranged on the outer ring;
the outer ring of the hub is of a cylindrical structure with one open end, and a hollow central shaft is axially arranged on the outer ring of the hub; the high-speed inner rotor permanent magnet synchronous motor is coaxially supported on the periphery of a central shaft through a bearing B and serves as a prime mover part of the electric hub; the planetary speed reducing mechanism is coaxially arranged between the high-speed inner rotor permanent magnet synchronous motor and the outer ring of the hub and is used for reducing speed and increasing torque of the electric hub; more than one brake caliper is arranged on the circumferential direction of the axial end part of the high-speed inner rotor permanent magnet synchronous motor, one end of the disc brake is arranged in the brake caliper, and the other end of the disc brake is connected with the inner key of the central shaft and used for providing a braking effect for the wheel.
Preferably, the high-speed inner rotor permanent magnet synchronous motor includes: the motor comprises a motor shell, a motor stator, a motor rotor and a motor output shaft;
the output shaft of the motor is a hollow shaft and is coaxially supported on the periphery of the central shaft through a bearing B; the motor shell is of an annular cavity structure and is coaxially supported on the periphery of the rear end of the motor output shaft through a bearing A107, and the planetary speed reducing mechanism is coaxially fixed on the periphery of the front end of the motor output shaft; motor stator and electric motor rotor are coaxial arrangement respectively in motor casing, and wherein, motor stator is coaxial to be set up outside electric motor rotor, and electric motor rotor is coaxial to be fixed in the periphery of motor output shaft.
Preferably, the planetary reduction mechanism includes: the sun gear, the planet gear, the outer gear ring and the planet retainer; the sun gear is coaxially fixed on the periphery of the front end of the motor output shaft; the outer gear ring is coaxially and fixedly connected to the front end part of the motor shell; the planet retainer is uniformly fixed on the inner end surface of the front end of the outer ring of the hub along the circumferential direction; each planetary retainer is coaxially provided with a planetary gear which is respectively meshed with the sun gear and the outer gear ring.
Preferably, a suspension interface is further mounted on the outer end face of the rear end of the motor housing and used for being connected with a vehicle body suspension.
Preferably, the non-pneumatic tire comprises: the tyre comprises a tyre inner ring, a topological support main body, a buffering shock-absorbing layer and a high-wear-resistance tread;
the tire inner ring and the topological support main body are both made of elastic materials and are both of annular structures, and the topological support main body is coaxially fixed on the tire inner ring; the buffering and damping layer is an annular high-elasticity cavity and is coaxially fixed on the periphery of the topological support main body; the high-abrasion-resistance tread is of an annular structure and is coaxially fixed on the periphery of the buffering and shock-absorbing layer.
Preferably, the topological support body adopts a web structure or a honeycomb structure which is uniformly arranged along the circumferential direction.
Preferably, the outer wall of the buffer and shock absorption layer is made of elastic material, and the inside of the buffer and shock absorption layer is filled with ETPU.
Preferably, the topological support body and the buffer damping layer have adjustable relative thicknesses in the radial direction.
Preferably, the fastening cover comprises: end panels and claw structures; the end face plate is of a disc-shaped structure, the claw-shaped structure is of a zigzag annular structure, the claw-shaped structure is perpendicular to the end face plate, and the claw-shaped structure and the end face plate are integrally formed to form a cylindrical structure with one end being open; the claw-shaped structure penetrates through the hollow part in the topological support main body and then is fixedly connected with the electric hub.
Has the advantages that:
(1) the utility model discloses a wheel combines electronic wheel hub and non-pneumatic tire as an organic whole, can enough make every wheel all have better independent driving force, can effectively prevent again to blow out and take place with the circumstances such as taking off the child, has effectively alleviateed unsprung mass simultaneously to be favorable to improving mobility, travelling comfort and the operational reliability of vehicle.
(2) The utility model discloses high-speed inner rotor permanent magnet synchronous motor among electric wheel hub of wheel can show the power density who promotes electric wheel hub, but the high-speed of motor can lead to its operating speed to mismatch with the actual work rotational speed of wheel, consequently adds planetary reduction mechanism between high-speed inner rotor permanent magnet synchronous motor's output shaft and wheel hub outer lane, can effectively balance the high-speed unmatched problem of actual work rotational speed with the wheel of motor.
(3) The utility model discloses the setting of wheel motor casing rear end suspension interface is favorable to being connected with the automobile body suspension.
(4) The utility model discloses the non-pneumatic tire of wheel adopts the design of double structural layer, can reach the better cooperation with electronic wheel hub, can effectively support again, can effective control shock attenuation effect under the condition of effective unsprung mass that reduces simultaneously.
(5) The utility model discloses a relative thickness of topology support main part and buffering buffer layer is adjustable among the non-pneumatic tire, can effectively balance the support function and the shock-absorbing function of the two, simultaneously, is favorable to reducing unsprung mass.
(6) The utility model discloses a claw-shaped structure that sets up in the fastening dustcoat is convenient for pass the fretwork part in the topology support main part, is favorable to further fastening non-pneumatic tire and electric wheel hub with electric wheel hub fixed back.
Drawings
Fig. 1 is a front view of the wheel of the present invention.
Fig. 2 is a partial cross-sectional view of the wheel of the present invention (only the tire is cut).
Fig. 3 is an exploded view of the wheel of the present invention.
Fig. 4 is a cross-sectional view of the wheel of the present invention.
Fig. 5 is a front view of a non-pneumatic tire of the present invention (using a web structure as the topological support body).
Fig. 6 is a front view of a non-pneumatic tire according to the present invention (using a honeycomb structure as the topological support body).
Fig. 7 is a cross-sectional view of a non-pneumatic tire according to the present invention.
The brake system comprises an electric hub 1, a motor shell 101, a brake caliper 102, a disc brake 103, a motor stator 104, a motor rotor 105, a motor output shaft 106, a bearing A108, a sun gear 109, a planetary gear 110, a hub outer ring 111, a bearing B112, an outer gear ring 113, a planetary retainer 114, a central shaft 114, a limiting flange 115, a suspension interface 116, a non-pneumatic tire 2, a tire inner ring 201, a topological support body 202, a buffer damping layer 203, a high-wear-resistant tread 204, a fastening outer cover 3, an end face plate 301, a claw-shaped structure 302, a fastening piece 4, a bolt A401, a bolt B402.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
Example 1:
the embodiment provides an electrically driven wheel based on non-pneumatic tire, can enough make every wheel all have better independent driving capability, can effectively prevent the flat tire again, has effectively alleviateed unsprung mass simultaneously to be favorable to improving mobility, travelling comfort and the operational reliability of vehicle.
As shown in fig. 1-3, the wheel includes: an electric hub 1, a non-pneumatic tire 2, and a fastening cover 3; as shown in fig. 4 to 7, the motorized hub 1 includes: the brake comprises a brake caliper 102, a disc brake 103, a high-speed inner rotor permanent magnet synchronous motor, a planetary speed reducing mechanism and a hub outer ring 110; the high-speed inner rotor permanent magnet synchronous motor comprises: a motor housing 101, a motor stator 104, a motor rotor 105, and a motor output shaft 106; the planetary reduction mechanism includes: sun gear 108, planet gears 109, outer ring gear 112, and planet carrier 113; the non-pneumatic tire 2 includes: a tire inner ring 201, a topological support body 202, a buffer shock-absorbing layer 203 and a high-wear-resistance tread 204; the fastening cover 3 includes: end panels 301 and claw structures 302.
The connection relationship of the wheels is as follows: the whole non-pneumatic tire 2 is of a ring structure, and the topological support body 202 and the buffering shock-absorbing layer 203 are double-structure layers of the non-pneumatic tire 2; the tire inner ring 201 and the topological support main body 202 are both made of elastic materials (such as high-strength rubber materials) and are of annular structures, the topological support main body 202 is coaxially fixed on the tire inner ring 201, and the topological support main body 202 adopts a spoke plate structure or a honeycomb structure which is uniformly distributed along the circumferential direction, so that the topological support main body can play a supporting role and can be used for absorbing large-amplitude and low-frequency impact from the ground; the buffering and shock-absorbing layer 203 is of an annular cavity structure, the outer wall of the cavity is made of elastic materials (such as high-strength rubber materials), a large number of fine polyurethane thermoplastic foaming particles (ETPU) are filled in the cavity, a high-elasticity cavity with the mechanical property similar to isotropy is formed, the high-elasticity cavity can absorb small-amplitude and high-frequency vibration from the ground, and the buffering and shock-absorbing layer 203 is coaxially fixed on the periphery of the topological support main body 202 and can be contacted and attached with the road surface more fully by extruding the deformation of the cavity under the conditions that the wheels are inclined, bumpy and uneven on the road surface; the high-wear-resistance tread 204 is of an annular structure and is coaxially fixed on the periphery of the buffering and shock-absorbing layer 203;
the hub outer ring 110 is a cylindrical structure with an opening at one end, the tire inner ring 201 is arranged on the periphery of the hub outer ring 110 in an interference fit manner, and a limiting flange is arranged at one end (the end is the axial rear end) of the hub outer ring 110 and used for limiting the tire inner ring 201 in the axial direction;
the end plate 301 is of a disc-shaped structure, the claw-shaped structure 302 is of a sawtooth annular structure, the claw-shaped structure 302 is perpendicular to the end plate 301, and the claw-shaped structure 302 and the end plate 301 are integrally formed to form a cylindrical structure with one open end; the claw-shaped structure 302 penetrates through the hollowed-out part of the topological support main body 202 and extends out from the axial front end to the axial rear end of the non-pneumatic tire 2, so that the end panel 301 is in contact with the axial front end face of the hub outer ring 110 and is fixed by the bolt B402, and the axial reinforcement of the electric hub 1 and the non-pneumatic tire 2 is realized; the inner diameter of the claw-shaped structure 302 is slightly smaller than the outer diameter of the tire inner ring 201, and the claw-shaped structure and the tire inner ring 201 are in interference fit, so that the tire inner ring 201 is favorably pressed on the hub outer ring 110; a through hole is formed in one end, extending out of the axial rear end of the non-pneumatic tire 2, of the claw-shaped structure 302, a threaded hole corresponding to the limiting flange 115 is formed in the limiting flange 115, the axes of the holes of the claw-shaped structure 302 and the limiting flange are radially parallel to the wheel, the fastening outer cover 3 is fastened with the hub outer ring 110 through a bolt A401, the electric hub 1 and the non-pneumatic tire 2 are radially limited, the electric hub 1 and the non-pneumatic tire are radially and fully compressed and circumferentially and fully fastened, and the tire inner ring 201 is prevented from rotating and sliding relative to; because the electric hub 1 and the non-pneumatic tire 2 are respectively and firmly installed in the radial direction, the axial direction and the circumferential direction, the safety and the reliability of the wheel under the working conditions of high-speed running and cross-country running of the vehicle can be met, and each part of the wheel is convenient and quick to detach, thereby being beneficial to replacement, maintenance and storage;
the hub outer ring 110 is axially provided with a central shaft 114; the motor output shaft 106 is a hollow shaft, and is coaxially supported on the outer periphery of the central shaft 114 through a bearing B111; the motor shell 101 is coaxially supported on the periphery of the rear end of the motor output shaft 106 through a bearing A107, and the sun gear 108 is coaxially fixed on the periphery of the front end of the motor output shaft 106; the motor stator 104 and the motor rotor 105 are respectively and coaxially installed in the motor housing 101, wherein the motor stator 104 is coaxially arranged outside the motor rotor 105, and the motor rotor 105 composed of permanent magnets and silicon steel sheets is coaxially fixed on the periphery of the motor output shaft 106 to be used as a prime mover part of the electric hub 1; the outer gear ring 112 is coaxially and fixedly connected to the front end of the motor shell 101 and is a non-rotating fixing piece; the planetary retainer 113 is uniformly fixed on the inner end surface of the front end of the hub outer ring 110 along the circumferential direction and serves as a final power output part of the whole electric hub 1; each planet retainer 113 is coaxially provided with a planet gear 109, and the planet gear 109 is respectively meshed with the sun gear 108 and the outer ring gear 112; more than one brake caliper 102 is arranged on the outer end face of the rear end of the motor housing 101 along the circumferential direction, the central shaft 114 is a hollow shaft, and the disc brake 103 includes: the brake shaft is fixed at one axial end of the brake shaft, the brake shaft is coaxially arranged in a central shaft 114 and is in key connection with the central shaft, the periphery of the disc is arranged in the brake caliper 102, and when the brake caliper 102 applies friction braking force on the disc brake 103, braking action can be generated on a wheel through the hub outer ring 110.
The working principle of the wheel is as follows: if the gear ratio between the outer ring gear 112 and the sun gear 108 is k, the rotational speed ω of the sun gear 108 is fixed when the outer ring gear 112 is fixed, based on the relationship between the rotational speeds and torques of the respective members of the planetary reduction mechanismSTorque TSRotational speed ω of planetary carrier 113CTorque TCSatisfies the following relationship: omegaC＝ωS/(1+k)，TC＝TS(1+ k); therefore, the mechanical power of the high-speed inner rotor permanent magnet synchronous motor is input from the sun gear 108 and output from the hub outer ring 110, so that the effect of speed reduction and torque increase on the mechanical power output by the high-speed inner rotor permanent magnet synchronous motor can be realized, and the vehicle can be effectively driven to run.
It should be noted that, the above description is only given by taking the electric hub 1 of the single-stage planetary reduction mechanism as an example, in a specific implementation process, according to a matching condition of the motor characteristics and the characteristics of the electric hub, the electric hub 1 may also adopt a multi-stage planetary reduction mechanism connected in series, a reduction mechanism composed of complex planetary rows, or even a multi-gear (more than two gears) speed change mechanism; all kinds of electronic wheel hub can be suitable for the utility model provides a non-pneumatic tire and mounting structure mode thereof.
Example 2:
on the basis of embodiment 1, by adjusting the relative thicknesses of the topological support body 202 and the cushion shock-absorbing layer 203 in the radial direction, the degree of matching therebetween and the overall mechanical characteristics of the non-pneumatic tire 2 can be effectively adjusted, thereby facilitating further alleviation of the unsprung mass of the wheel and the influence thereof.
Example 3:
in addition to embodiment 1 or 2, a suspension interface 116 is further mounted on the outer end face of the rear end of the motor housing 101 for suspension connection with the vehicle body.
Example 4:
on the basis of the embodiment 1, 2 or 3, according to the requirements of specific driving road conditions on the tread of the non-pneumatic tire 2, the high-abrasion tread 204 is cast by a mold or printed by 3D.
Example 5:
on the basis of embodiment 1 or 2 or 3 or 4, the motor housing 101 is provided with a cooling structure (e.g., a cooling water jacket) inside for cooling the motor hub 1 to prevent overheating.
Example 6:
on the basis of the embodiment 1 or 2 or 3 or 4 or 5, the rigidity of the topological support body 202 is greater than that of the buffering shock-absorbing layer 203, that is, the topological support body 202 mainly has a support function and assists in a shock-absorbing function, and the buffering shock-absorbing layer 203 mainly has a shock-absorbing function and assists in a support function;
in summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electrically driven wheel based on a non-pneumatic tire, comprising: an electric hub (1), a non-pneumatic tire (2) and a fastening cover (3); the non-pneumatic tire (2) is of an annular structure, the electric hub (1) is of a cylindrical structure, and the non-pneumatic tire (2) is coaxially sleeved on the periphery of the electric hub (1) and is in interference fit with the electric hub; the fastening outer cover (3) is of a cylindrical structure with an opening at one end, is coaxially embedded into the non-pneumatic tire (2), and is fixedly connected with the electric hub (1) through a fastening piece (4).
2. Electrically driven wheel based on a non-pneumatic tyre, as claimed in claim 1, characterized in that said motorized hub (1) comprises: the brake comprises a brake caliper (102), a disc brake (103), a high-speed inner rotor permanent magnet synchronous motor, a planetary speed reducing mechanism and a hub outer ring (110);
the hub outer ring (110) is of a cylindrical structure with one open end, and a hollow central shaft (114) is axially arranged on the hub outer ring; the high-speed inner rotor permanent magnet synchronous motor is coaxially supported on the periphery of a central shaft (114) through a bearing B (111) and serves as a prime mover part of the electric hub (1); the planetary speed reducing mechanism is coaxially arranged between the high-speed inner rotor permanent magnet synchronous motor and a hub outer ring (110) and is used for reducing speed and increasing torque of the electric hub (1); more than one brake caliper (102) is arranged on the circumferential direction of the axial end portion of the high-speed inner rotor permanent magnet synchronous motor, one end of the disc brake (103) is arranged in the brake caliper (102), and the other end of the disc brake is connected with the inner key of the central shaft (114) and used for providing a braking effect for wheels.
3. A non-pneumatic tire based electrically driven wheel as in claim 2, wherein said high speed inner rotor permanent magnet synchronous motor comprises: a motor housing (101), a motor stator (104), a motor rotor (105) and a motor output shaft (106);
the motor output shaft (106) is a hollow shaft and is coaxially supported on the periphery of the central shaft (114) through a bearing B (111); the motor shell (101) is of an annular cavity structure, and is coaxially supported on the periphery of the rear end of the motor output shaft (106) through a bearing A107, and the planetary speed reducing mechanism is coaxially fixed on the periphery of the front end of the motor output shaft (106); the motor stator (104) and the motor rotor (105) are respectively and coaxially installed in the motor shell (101), wherein the motor stator (104) is coaxially arranged outside the motor rotor (105), and the motor rotor (105) is coaxially fixed on the periphery of the motor output shaft (106).
4. A non-pneumatic tire based electrically driven wheel as in claim 3, wherein said planetary reduction mechanism comprises: a sun gear (108), a planetary gear (109), an outer ring gear (112) and a planetary carrier (113); the sun gear (108) is coaxially fixed on the periphery of the front end of the motor output shaft (106); the outer gear ring (112) is coaxially and fixedly connected to the front end part of the motor shell (101); the planet retainer (113) is uniformly fixed on the inner end surface of the front end of the hub outer ring (110) along the circumferential direction; a planetary gear (109) is coaxially arranged on each planetary retainer (113), and the planetary gear (109) is respectively meshed with the sun gear (108) and the outer gear ring (112).
5. A non-pneumatic electrically driven wheel as claimed in claim 3, wherein said motor housing (101) further has a suspension interface (116) mounted on the outer end surface at the rear end thereof for connection to a vehicle body suspension.
6. A non-pneumatic tyre based electrically-driven wheel as claimed in claim 1, wherein said non-pneumatic tyre (2) comprises: the tyre comprises a tyre inner ring (201), a topological support body (202), a buffer shock-absorbing layer (203) and a high-wear-resistance tread (204);
the tire inner ring (201) and the topological support main body (202) are both made of elastic materials and are both of annular structures, and the topological support main body (202) is coaxially fixed on the tire inner ring (201); the buffer damping layer (203) is an annular high-elasticity cavity and is coaxially fixed on the periphery of the topological support main body (202); the high-wear-resistance tread (204) is of an annular structure and is coaxially fixed on the periphery of the buffering and shock-absorbing layer (203).
7. A non-pneumatic tire-based, electrically driven wheel as in claim 6, wherein said topological support body (202) is of a web structure or a honeycomb structure uniformly arranged in a circumferential direction.
8. Electrically driven wheel based on a non-pneumatic tyre, as claimed in claim 6, characterized in that the outer wall of said shock-absorbing layer (203) is made of elastomeric material, the interior of which is filled with ETPU.
9. A non-pneumatic tire based electrically driven wheel as in claim 6, wherein the relative thickness of said topological support body (202) and said cushioning layer (203) in the radial direction is adjustable.
10. Electrically driven non-pneumatic tyre-based wheel as claimed in claim 7, characterized in that said fastening housing (3) comprises: an end panel (301) and a claw structure (302); the end plate (301) is of a disc-shaped structure, the claw-shaped structure (302) is of a sawtooth annular structure, the claw-shaped structure (302) is perpendicular to the end plate (301), and the claw-shaped structure and the end plate (301) are integrally formed to form a cylindrical structure with one open end; the claw-shaped structure (302) penetrates through the hollow part in the topological support main body (202) and then is fixedly connected with the electric hub (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020360644.2U CN212446943U (en) | 2020-03-20 | 2020-03-20 | Electrically driven wheel based on non-pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020360644.2U CN212446943U (en) | 2020-03-20 | 2020-03-20 | Electrically driven wheel based on non-pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212446943U true CN212446943U (en) | 2021-02-02 |
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ID=74465886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020360644.2U Active CN212446943U (en) | 2020-03-20 | 2020-03-20 | Electrically driven wheel based on non-pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212446943U (en) |
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2020
- 2020-03-20 CN CN202020360644.2U patent/CN212446943U/en active Active
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