CN114571908B - Wheel cover and wheel and vehicle with same - Google Patents
Wheel cover and wheel and vehicle with same Download PDFInfo
- Publication number
- CN114571908B CN114571908B CN202110242010.6A CN202110242010A CN114571908B CN 114571908 B CN114571908 B CN 114571908B CN 202110242010 A CN202110242010 A CN 202110242010A CN 114571908 B CN114571908 B CN 114571908B
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- wheel cover
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- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 239000000446 fuel Substances 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
- B60B7/0013—Hub caps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/008—Side spoilers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a wheel cover, a wheel with the same and a vehicle. The wheel cover includes: the wheel covers are connected through a first elastic element, and when the two adjacent wheel covers are close to each other in the axial direction of the wheel cover, the first elastic element is compressed; and the adjusting device is used for adjusting the distance between at least two adjacent wheel covers in the axial direction of the wheel cover. According to the wheel cover provided by the embodiment of the invention, the distance between the multiple wheel covers can be changed through the adjusting device in the axial direction of the wheel cover so as to change the plugging proportion of the wheel cover, and when the wheel cover is used for a vehicle, the ventilation property and the wind resistance coefficient of the wheel can be adjusted, so that the requirements of the vehicle under different working conditions are met, the aerodynamic performance and the heat dissipation performance of the vehicle are balanced, and the fuel economy of the vehicle and the safety of a braking system are ensured.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a wheel cover, a wheel with the wheel cover and a vehicle.
Background
The aerodynamic performance of the automobile is one of important characteristics affecting the running performance of the automobile, and the fuel consumption of about 53% is used for overcoming the air resistance when the automobile runs at a constant speed of 90km/h, so that the air resistance of the automobile is reduced, and the fuel economy of the automobile can be effectively improved.
In the related art, the wheel cover is used for blocking the outer side of the wheel hub, so that the air flow inside and outside the wheel can be reduced, the wind resistance of the wheel is reduced, the larger the blocking proportion of the wheel cover to the wheel hub is, the smaller the air flow inside and outside the wheel is, the lower the wind resistance of the wheel is, however, the heat dissipation performance of a braking system at the inner side of the wheel is affected by the reduction of the air flow, and the braking system is easy to cause heat fading due to untimely heat dissipation, so that the driving safety is affected, and therefore, the method has important practical engineering significance and social benefit.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, a first object of the present invention is to provide a wheel cover, in which the blocking ratio of the wheel cover can be changed to ensure the fuel economy of the vehicle and the safety of the braking system.
A second object of the invention is to propose a wheel.
A third object of the invention is to propose a vehicle.
To achieve the above object, an embodiment of a first aspect of the present invention provides a wheel cover including: the wheel covers are connected through a first elastic element, and when the two adjacent wheel covers are close to each other in the axial direction of the wheel cover, the first elastic element is compressed; and the adjusting device is used for adjusting the distance between at least two adjacent wheel covers in the axial direction of the wheel cover.
According to the wheel cover provided by the embodiment of the invention, the distance between the wheel covers can be changed by the adjusting device in the axial direction of the wheel cover so as to change the plugging proportion of the wheel cover, and when the wheel cover is used for a vehicle, the ventilation property and the wind resistance coefficient of the wheel can be adjusted, so that the requirements of the vehicle under different working conditions are met, the aerodynamic performance and the heat dissipation performance of the vehicle are balanced, and the fuel economy of the vehicle and the safety of a braking system are ensured.
According to some embodiments of the invention, the plurality of wheel covers are arranged in an axial direction of the wheel cover, the plurality of wheel covers comprises at least a first wheel cover on a first side and a second wheel cover on a second side, wherein the first wheel cover has a first fixing part adapted to be fixed with a wheel hub, the adjusting device is arranged on the second wheel cover, and the adjusting device has an adjusting device fixing part adapted to be fixed with the wheel hub.
According to some embodiments of the invention, the radial outer dimensions of the first to second wheel housings decrease one by one, and at least the first wheel housing is configured as an annular wheel housing of the plurality of wheel housings.
According to some embodiments of the invention, the adjusting device comprises: the adjusting device comprises an adjusting device body, wherein an adjusting block is arranged on the adjusting device body and is suitable for pushing the second wheel cover to move towards the first wheel cover.
Further, the adjusting device further includes: the adjusting device comprises an adjusting device body, wherein a first end of the adjusting device body is connected with a limiting shaft, a second end of the adjusting device body extends towards the second wheel cover, the adjusting device body is located on a bus of a conical surface with gradually increased diameter, the adjusting block penetrates through the adjusting device body, and the adjusting block is suitable for moving between the first end and the second end of the adjusting device body.
Further, when the adjusting block is positioned at the first end of the adjusting limiting shaft, the plurality of wheel covers are spaced apart in the axial direction of the wheel cover; when the adjusting block is positioned at the second end of the adjusting limiting shaft, the multiple wheel covers are attached to each other in the axial direction of the wheel cover.
Further, the adjusting block is also connected with the adjusting device body through a second elastic element.
Further, the adjusting device further includes: the intermediate shaft is penetrated by the second wheel cover, and a limiting block for limiting the movement limit of the second wheel cover is arranged on the intermediate shaft.
To achieve the above object, an embodiment of a second aspect of the present invention provides a wheel including: a hub and the wheel cover.
According to the wheel provided by the embodiment of the invention, the wheel cover can be covered on one side of the wheel hub facing the outside of the vehicle, and the opening and closing of the wheel cover are controlled by utilizing the difference of centrifugal force of the regulating block under different wheel speeds, so that the wheel cover is automatically opened when a braking system is required to dissipate heat, and the wheel cover is automatically closed when the vehicle runs at a high speed, so that the aerodynamic performance and the heat dissipation performance of the vehicle are balanced, and the wheel has the advantages of simple structure, good stability, simplicity and convenience in installation and use, suitability for mass production and the like.
To achieve the above object, an embodiment of a third aspect of the present invention proposes a vehicle including the above wheel.
According to the vehicle provided by the embodiment of the invention, the wheel cover is controlled to be opened and closed by utilizing the difference of centrifugal force of the regulating block under different vehicle speeds, so that the wheel cover is automatically opened when the braking system is required to dissipate heat, and the wheel cover is automatically closed when the vehicle runs at a high speed, so that the aerodynamic performance and the heat dissipation performance of the vehicle are balanced, and the vehicle has the advantages of simple structure, good stability, simplicity and convenience in installation and use, suitability for mass production and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a plurality of pulley shields;
FIG. 2 is a schematic view of an adjustment device;
FIG. 3 is a schematic view of the wheel cover in an open condition;
FIG. 4 is another schematic view of the wheel cover in an open condition;
FIG. 5 is a schematic view of the wheel cover in a closed condition;
fig. 6 is a schematic view of the adjustment device body, intermediate shaft and adjustment limiting shaft.
Reference numerals:
The first pulley cover 11, the first fixing portion 111, the second pulley cover 12, the intermediate pulley cover 13, the first elastic member 14, the adjusting device 2, the adjusting device body 21, the adjusting device fixing portion 211, the boss 212, the adjusting block 22, the adjusting limiting shaft 23, the second elastic member 24, the intermediate shaft 25, and the limiting block 251.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "axial," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
A wheel cover according to an embodiment of the present invention, and a wheel and a vehicle having the same, are described in detail below with reference to fig. 1 to 6.
The wheel cover according to the embodiment of the present invention may be provided outside a hub of a vehicle, the wheel cover including: a plurality of wheel covers and an adjusting device 2.
Referring to fig. 1, two adjacent wheel covers are connected through a first elastic element 14, and when the two adjacent wheel covers approach each other in the axial direction of the wheel cover, the first elastic element 14 is compressed to adjust the axial gap between the two adjacent wheel covers, and when the position of one wheel cover of the plurality of wheel covers is adjusted, the other wheel covers can realize linkage, and in addition, the compressed first elastic element 14 can also provide a restoring force for the wheel cover.
Referring to fig. 1, two adjacent wheel covers are located at both sides of the first elastic member 14, one end of the first elastic member 14 may be connected to an inner surface of one of the two adjacent wheel covers, and the other end of the first elastic member 14 may be connected to an outer surface of the other of the two adjacent wheel covers. Alternatively, the adjacent two wheel covers are connected by a plurality of first elastic elements 14, and the plurality of first elastic elements 14 may be uniformly arranged along the circumferential direction of the wheel cover.
Referring to fig. 2, 4 and 5, the adjusting device 2 is configured to adjust the distance between at least two adjacent wheel covers in the axial direction of the wheel cover, so as to change the plugging ratio of the wheel cover, in other words, change the ventilation of the wheel cover, thereby changing the ventilation and the windage coefficient of the wheel, so as to meet the requirements of the vehicle under different working conditions, and balance the aerodynamic performance and the heat dissipation performance of the vehicle.
Specifically, when the braking system of the vehicle needs to dissipate heat, the distance between the wheel covers can be increased through the adjusting device 2, so that air can be blown to the braking system through gaps among the wheel covers, and the heat dissipation effect of the braking system is guaranteed. The brake system includes: brake discs and friction plates located inboard of the wheels. When the vehicle runs at a high speed and needs to reduce air resistance, the distance between at least two adjacent wheel separating covers can be reduced through the adjusting device 2, so that the air quantity flowing to the wheel hub is reduced, the wind resistance coefficient of the wheel is reduced, and the fuel economy or the endurance mileage of the vehicle is improved.
According to the wheel cover provided by the embodiment of the invention, in the axial direction of the wheel cover, the distance between the multiple wheel covers can be changed through the adjusting device 2 so as to change the plugging proportion of the wheel cover, and when the wheel cover is used for a vehicle, the ventilation property and the wind resistance coefficient of the wheel can be adjusted, so that the requirements of the vehicle under different working conditions are met, the aerodynamic performance and the heat dissipation performance of the vehicle are balanced, and the fuel economy of the vehicle and the safety of a braking system are ensured.
Referring to fig. 1 to 5, the plurality of wheel covers are arranged in an axial direction of the wheel cover, and the plurality of wheel covers at least include a first wheel cover 11 located at a first side and a second wheel cover 12 located at a second side, wherein the first wheel cover 11 has a first fixing portion 111 adapted to be fixed with a wheel hub, the first fixing portion 111 may be a clamping groove or a clamping hook, the adjusting device 2 is disposed on the second wheel cover 12, and the adjusting device 2 has an adjusting device fixing portion 211 adapted to be fixed with the wheel hub, the adjusting device fixing portion 211 may be a plurality of mounting posts adapted to be fixed in the wheel hub bolt holes.
When the number of the plurality of wheel covers is two or more, the wheel cover located between the first wheel cover 11 and the second wheel cover 12 is the intermediate wheel cover 13, and the number of the intermediate wheel covers 13 may be set according to actual requirements.
In some embodiments of the present invention, the radial outer dimensions of the first to second wheel covers 11 to 12 are gradually decreased one by one, and at least the first wheel cover 11 is configured as an annular wheel cover among the plurality of wheel covers, that is, the middle portion of the first wheel cover 11 has a hole through which air can be ventilated, and the size of the middle wheel cover 13 located inside the first wheel cover 11 is smaller than that of the first wheel cover 11 to ensure that the ventilation of the wheel cover can be changed while increasing the gap between the adjacent two wheel covers.
Referring to the embodiment shown in fig. 1, the first wheel cover 11 is in a circular shape, the middle wheel cover 13 is in a circular shape, the second wheel cover 12 is in a circular shape, the outer diameter of the middle wheel cover 13 is smaller than the outer diameter of the first wheel cover 11, the diameter of the second wheel cover 12 is smaller than the outer diameter of the middle wheel cover 13, and the size relationship between the inner diameter of the first wheel cover 11 and the outer diameter of the middle wheel cover 13 can be set according to practical situations, that is, the inner diameter of the first wheel cover 11 and the outer diameter of the middle wheel cover 13 can be equal or unequal. The relationship between the diameter of the second pulley cover 12 and the inner diameter of the intermediate pulley cover 13 may be set according to the actual situation, that is, the diameter of the second pulley cover 12 may be equal to or different from the inner diameter of the intermediate pulley cover 13.
Referring to fig. 2, 4 and 5, the adjusting device 2 includes: the adjusting device body 21, the adjusting device body 21 is provided with an adjusting block 22, and the adjusting block 22 is suitable for pushing the second wheel cover 12 to move towards the first wheel cover 11 so as to change the distance between the plurality of wheel covers.
Specifically, since the first wheel cover 11 is fixed to the hub, and the two adjacent wheel covers are connected by the first elastic element 14, when the adjusting block 22 pushes the second wheel cover 12 to move towards the first wheel cover 11, the middle wheel cover 13 will also move along with the second wheel cover 12, that is, the middle wheel cover 13 will also move towards the first wheel cover 11 along with the second wheel cover 12, so as to reduce the distance between all the wheel covers in the axial direction of the wheel cover, so as to reduce the air quantity flowing to the hub, thereby being beneficial to reducing the wind resistance coefficient of the wheel, and further being beneficial to improving the fuel economy or endurance mileage of the vehicle.
Referring to fig. 2,4 and 5, the adjusting device 2 further includes: the adjusting limiting shaft 23, the first end of the adjusting limiting shaft 23 is connected to the adjusting device body 21, the second end of the adjusting limiting shaft 23 extends towards the second wheel cover 12, the adjusting limiting shaft 23 is located on a generatrix of a conical surface with gradually increased diameter in the direction from the second wheel cover 12 to the first wheel cover 11, the adjusting block 22 penetrates through the adjusting limiting shaft 23, the adjusting block 22 is suitable for moving between the first end and the second end of the adjusting limiting shaft 23, when the wheel cover rotates, centrifugal forces received by the adjusting block 22 at different rotating speeds of the wheel cover are different, when the rotating speed of the wheel cover increases, the centrifugal force received by the adjusting block 22 increases, the adjusting block 22 moves from the first end of the adjusting limiting shaft 23 to the second end, the second wheel cover 12 can be pushed to move towards the first wheel cover 11, the first elastic element 14 is compressed, when the rotating speed of the wheel cover decreases, the centrifugal force received by the adjusting block 22 decreases, the second wheel cover 12 resets towards the adjusting device body 21 under the action of the reset force of the first elastic element 14, and then the adjusting block 22 is pushed to reset towards the first end of the adjusting limiting shaft 23.
In other embodiments of the present invention, the included angle between the adjusting and limiting shaft 23 and the centrifugal force direction when the wheel cover rotates is smaller than 30 °, and the adjusting and limiting shaft 23 is inclined towards the second wheel cover 12, when the wheel cover rotates, the centrifugal force received by the adjusting block 22 at different rotation speeds of the wheel cover is different, when the rotation speed of the wheel cover increases, the centrifugal force received by the adjusting block 22 increases, the adjusting block 22 moves from the first end of the adjusting and limiting shaft 23 towards the second end, so as to push the second wheel cover 12 to move towards the first wheel cover 11, the first elastic element 14 is compressed, when the rotation speed of the wheel cover decreases, the centrifugal force received by the adjusting block 22 decreases, the second wheel cover 12 returns towards the adjusting device body 21 under the action of the restoring force of the first elastic element 14, and then the adjusting block 22 is pushed to return towards the first end of the adjusting and limiting shaft 23.
The adjusting limiting shafts 23 and the adjusting blocks 22 may be optionally provided in plural, for example, 5, and the adjusting limiting shafts 23 may be arranged at equal intervals in the circumferential direction of the adjusting device body 21 to ensure the stability of the second pulley cover 12 when the adjusting blocks 22 push the second pulley cover 12.
Referring to fig. 4, when the adjusting block 22 is at the first end of the adjusting limiting shaft 23, the plurality of wheel covers are spaced apart in the axial direction of the wheel cover, air can be blown to the braking system through gaps among the plurality of wheel covers to ensure the heat dissipation effect of the braking system, and when the adjusting block 22 is at the second end of the adjusting limiting shaft 23, the plurality of wheel covers are attached in the axial direction of the wheel cover to reduce the airflow at the inner side and the outer side of the wheel cover, so that the airflow is smoother when flowing through the side surface of the wheel, and the purpose of reducing wind resistance is achieved.
Referring to fig. 2 and 4-6, the adjusting block 22 is further connected to the adjusting device body 21 through a second elastic element 24, a protrusion 212 adapted to fix the second elastic element 24 may be provided on the adjusting device body 21, one end of the second elastic element 24 is fixed to the protrusion 212, the other end of the second elastic element 24 is fixed to the adjusting block 22, when the adjusting block 22 moves from the first end of the adjusting limiting shaft 23 to the second end, the second elastic element 24 is stretched, and the second elastic element 24 may apply an elastic force to the adjusting block 22 moving toward the first end of the limiting shaft.
Alternatively, the first resilient element 14 and the second resilient element 24 are both springs.
Referring to fig. 3 and 6, the adjusting device 2 further includes: the intermediate shaft 25, the intermediate shaft 25 is fixed with the adjusting device body 21, the second pulley cover 12 is arranged on the intermediate shaft 25 in a penetrating way, a limiting block 251 limiting the movement limit of the second pulley cover 12 is arranged on the intermediate shaft 25, the diameter of the limiting block 251 can be larger than that of the intermediate shaft 25, and the second pulley cover 12 can move along the intermediate shaft 25 between the adjusting device body 21 and the limiting block 251 so as to limit the movement direction and the maximum movement distance of the second pulley cover 12 through the intermediate shaft 25.
Referring to fig. 3 to 5, the wheel cover has an open state in which the plurality of wheel covers are spaced apart in the axial direction of the wheel cover and a closed state in which the plurality of wheel covers are fitted in the axial direction of the wheel cover, and the critical rotational speed of the wheel cover at the time of switching between the open state and the closed state can be changed by adjusting the weight of the adjustment block 22, the stiffness coefficient of the first elastic member 14, the stiffness coefficient of the second elastic member 24, and the like, and further, the critical rotational speed can be obtained experimentally, and the critical rotational speed of the wheel cover can be converted into the critical vehicle speed V according to the wheel size of the wheel cover used.
Specifically, when the vehicle speed is lower than the critical vehicle speed V, the rotational speed of the wheel cover is lower than the critical rotational speed, the centrifugal force applied to the adjusting block 22 is smaller, the axial component force of the adjusting block 22 along the adjusting limiting shaft 23 and the elastic force of the second elastic element 24 are in a balanced state, the adjusting block 22 is not moved, the first wheel cover 11, the middle wheel cover 13 and the second wheel cover 12 are still static, a larger gap is still reserved between the first wheel cover 11, the middle wheel cover 13 and the second wheel cover 12, the air flow can smoothly pass, and the wind resistance of the wheels has smaller influence on the fuel economy or the endurance mileage of the vehicle due to the lower vehicle speed at the moment.
When the vehicle speed is higher than the critical vehicle speed V, the rotational speed of the wheel cover is higher than the critical rotational speed, the centrifugal force applied by the adjusting block 22 increases, the axial component force of the adjusting block 22 along the adjusting limiting shaft 23 is larger than the elastic force of the second elastic element 24, the adjusting block 22 moves towards the second end of the limiting shaft, the adjusting block 22 presses the second wheel cover 12 to enable the second wheel cover 12 to move towards the first wheel cover, the gap between the second wheel cover 12 and the middle wheel cover 13 is reduced, the first elastic element 14 between the second wheel cover 12 and the middle wheel cover 13 is compressed, the middle wheel cover 13 is pushed to push towards the first wheel cover 11, the middle wheel cover 13 also moves towards the first wheel cover 11, the gap between the middle wheel cover 13 and the first wheel cover 11 is reduced, and the first elastic element 14 between the middle wheel cover 13 and the first wheel cover 11 is compressed. Therefore, under the action of the large centrifugal force of the adjusting block 22, the second wheel cover 12 and the middle wheel cover 13 move towards the first wheel cover 11, and gaps among the wheel covers are compressed, so that the air flow on the inner side and the outer side of the wheel cover is reduced, and the air flow is smoother when flowing through the side surface of the wheel, and the purpose of reducing wind resistance is achieved.
When the vehicle speed is higher than the critical vehicle speed V and is lower than the critical vehicle speed V, the rotating speed of the wheel cover is changed from higher than the critical rotating speed to lower than the critical rotating speed, the centrifugal force borne by the regulating block 22 is reduced, the axial component force of the regulating block 22 along the regulating limiting shaft 23 is smaller than the elastic force of the second elastic element 24, the regulating block 22 moves towards the first end of the limiting shaft, meanwhile, the middle wheel cover 13 and the second wheel cover 12 are reset towards the direction of the regulating device body 21, the first wheel cover 11, the middle wheel cover 13 and the second wheel cover 12 are spaced in the axial direction of the wheel cover, and the air flow can smoothly pass through the wheel cover so as to meet the heat dissipation requirement of a braking system when the vehicle is in a braking working condition.
Optionally, the critical vehicle speed V is in the range of 40km/h-100km/h, for example, 70km/h, when the vehicle speed is lower than 70km/h, the wheel cover is in an open state, so that heat dissipation of the automatic system can be ensured, when the vehicle speed is higher than 70km/h, the wheel cover is in a closed state, so that the air resistance of the wheel can be reduced, although the air quantity flowing through the braking system is smaller at the moment, under normal conditions, when the vehicle speed is higher than 70km/h, the vehicle is not in a braking condition for a long time, the braking system also does not generate more heat, so that the safety of the braking system is not affected, that is, if the vehicle is in a braking condition for a long time, the vehicle speed is lower than 70km/h, so that the wheel cover is in an open state, and heat fading of the braking system is prevented.
According to the wheel cover disclosed by the embodiment of the invention, the wheel cover is controlled to be opened and closed by utilizing the difference of centrifugal force of the regulating block 22 under different wheel cover rotating speeds, so that the wheel cover is automatically opened when a braking system needs to be cooled, and the wheel cover is automatically closed when a vehicle runs at a high speed, so that the aerodynamic performance and the heat dissipation performance of the automobile are balanced, and the wheel cover has the advantages of simple structure, good stability, simplicity and convenience in installation and use, suitability for mass production and the like.
In addition, an embodiment of the present invention also provides a wheel, including: the wheel hub and the wheel cover of the embodiment can be covered on one side of the wheel hub facing the outside of the vehicle, and the wheel cover is controlled to be opened and closed by utilizing the difference of centrifugal force of the regulating block 22 under different wheel speeds so as to realize automatic opening of the wheel cover when the braking system is required to radiate heat, and the wheel cover is automatically closed when the vehicle runs at a high speed so as to balance the aerodynamic performance and the heat radiation performance of the vehicle.
In addition, the embodiment of the invention also provides a vehicle, which comprises the wheel of the embodiment, and the opening and closing of the wheel cover are controlled by utilizing the difference of centrifugal force of the regulating block 22 under different vehicle speeds, so that the wheel cover is automatically opened when the braking system needs to be cooled, and the wheel cover is automatically closed when the vehicle runs at a high speed, so that the aerodynamic performance and the heat dissipation performance of the vehicle are balanced, and the vehicle has the advantages of simple structure, good stability, simplicity and convenience in installation and use, suitability for mass production and the like.
It should be noted that the wheel cover of the above embodiment can be applied to various vehicle types such as household sedan, off-road vehicle, commercial vehicle, etc., and has the advantage of wider application range
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. A wheel cover, comprising:
The wheel covers are connected through a first elastic element (14), when the two adjacent wheel covers are close to each other in the axial direction of the wheel cover, the first elastic element (14) is compressed, and the wheel covers are distributed along the axial direction of the wheel cover;
the adjusting device (2) is used for adjusting the distance between at least two adjacent wheel covers in the axial direction of the wheel cover;
a plurality of wheel covers are arranged along the axial direction of the wheel cover, the wheel covers at least comprise a first wheel cover (11) positioned on a first side and a second wheel cover (12) positioned on a second side, wherein the first wheel cover (11) is provided with a first fixing part (111) which is suitable for being fixed with a wheel hub, the regulating device (2) is arranged on the second wheel cover (12), and the regulating device (2) is provided with a regulating device fixing part (211) which is suitable for being fixed with the wheel hub;
The adjusting device (2) comprises: an adjusting device body (21), wherein an adjusting block (22) is arranged on the adjusting device body (21), and the adjusting block (22) is suitable for pushing the second wheel cover (12) to move towards the first wheel cover (11);
The adjusting device (2) further comprises: adjust spacing axle (23), the first end of adjusting spacing axle (23) is connected on adjusting device body (21), the second end of adjusting spacing axle (23) orientation second minute wheel casing (12) extend, and in follow second minute wheel casing (12) to the direction of first minute wheel casing (11), it is located the generating line of the conical surface that the diameter increases gradually to adjust spacing axle (23), adjust piece (22) wear to locate adjust spacing axle (23), adjust piece (22) are suitable for remove between the first end and the second end of adjusting spacing axle (23).
2. The wheel cover according to claim 1, characterized in that the radial outer dimensions of the first wheel cover (11) to the second wheel cover (12) decrease one by one, and that at least the first wheel cover (11) is configured as an annular wheel cover among a plurality of wheel covers.
3. The wheel cover according to claim 1, characterized in that a plurality of said wheel sub-covers are spaced apart in the axial direction of the wheel cover when the adjustment block (22) is at the first end of the adjustment limit shaft (23);
When the adjusting block (22) is positioned at the second end of the adjusting limiting shaft (23), the wheel covers are attached to each other in the axial direction of the wheel cover.
4. Wheel cover according to claim 1, characterized in that the adjusting block (22) is also connected to the adjusting device body (21) by means of a second elastic element (24).
5. Wheel cover according to claim 1, characterized in that the adjusting device (2) further comprises: the middle shaft (25), the second pulley cover (12) is worn to locate middle shaft (25), just be provided with on middle shaft (25) stopper (251) that restriction second pulley cover (12) motion limit.
6. A wheel, comprising: hub and wheel cover according to any of claims 1-5.
7. A vehicle comprising a wheel according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110242010.6A CN114571908B (en) | 2021-03-04 | 2021-03-04 | Wheel cover and wheel and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110242010.6A CN114571908B (en) | 2021-03-04 | 2021-03-04 | Wheel cover and wheel and vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114571908A CN114571908A (en) | 2022-06-03 |
| CN114571908B true CN114571908B (en) | 2024-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110242010.6A Active CN114571908B (en) | 2021-03-04 | 2021-03-04 | Wheel cover and wheel and vehicle with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN114571908B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219241A (en) * | 1977-11-11 | 1980-08-26 | Daimler-Benz Aktiengesellschaft | Ventilating ornamental wheel cover for solid wheels |
| US4593953A (en) * | 1983-12-14 | 1986-06-10 | Kabushiki-Kaisha Tokai-Rika-Denki-Seisakusho | Apparatus for covering disc wheel for motor vehicle |
| DE102011104264A1 (en) * | 2011-06-15 | 2012-03-29 | Daimler Ag | Wheel cover for motor vehicle, has moving units which are positioned in cover main portion, such that cover main portion is deformed from one position to another position based on temperature |
| CN104742640A (en) * | 2015-03-31 | 2015-07-01 | 吉林大学 | Anti-drag device capable of adjusting wheel spoke hole area automatically |
| CN105711565A (en) * | 2014-12-18 | 2016-06-29 | 通用汽车环球科技运作有限责任公司 | Motor vehicle with ventilated wheel case |
| CN208290831U (en) * | 2018-01-24 | 2018-12-28 | 长沙市比亚迪汽车有限公司 | A kind of wheel cover and wheel and vehicle with it |
-
2021
- 2021-03-04 CN CN202110242010.6A patent/CN114571908B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219241A (en) * | 1977-11-11 | 1980-08-26 | Daimler-Benz Aktiengesellschaft | Ventilating ornamental wheel cover for solid wheels |
| US4593953A (en) * | 1983-12-14 | 1986-06-10 | Kabushiki-Kaisha Tokai-Rika-Denki-Seisakusho | Apparatus for covering disc wheel for motor vehicle |
| DE102011104264A1 (en) * | 2011-06-15 | 2012-03-29 | Daimler Ag | Wheel cover for motor vehicle, has moving units which are positioned in cover main portion, such that cover main portion is deformed from one position to another position based on temperature |
| CN105711565A (en) * | 2014-12-18 | 2016-06-29 | 通用汽车环球科技运作有限责任公司 | Motor vehicle with ventilated wheel case |
| CN104742640A (en) * | 2015-03-31 | 2015-07-01 | 吉林大学 | Anti-drag device capable of adjusting wheel spoke hole area automatically |
| CN208290831U (en) * | 2018-01-24 | 2018-12-28 | 长沙市比亚迪汽车有限公司 | A kind of wheel cover and wheel and vehicle with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114571908A (en) | 2022-06-03 |
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