CN210363192U

CN210363192U - Wheel hub, tire assembly and vehicle including wheel hub

Info

Publication number: CN210363192U
Application number: CN201921062889.0U
Authority: CN
Inventors: 詹佳; 尹章顺
Original assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Current assignee: SAIC General Motors Corp Ltd; Pan Asia Technical Automotive Center Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-04-21
Anticipated expiration: 2029-07-09

Abstract

The utility model provides a wheel hub, including this wheel hub's tire assembly and vehicle. The wheel hub (100) comprises a wheel rim (1), a spoke (2) detachably connected with the wheel rim (1) and a fastening part for fixing the wheel rim (1) and the spoke (2) together.

Description

Wheel hub, tire assembly and vehicle including wheel hub

Technical Field

The utility model relates to a vehicle wheel hub field particularly, relates to a vehicle wheel hub with removable formula spoke, including this wheel hub's tire assembly and the vehicle including this tire assembly.

Background

The vehicle can contact with air during running, and generates large resistance, namely pneumatic resistance. The magnitude of the aerodynamic resistance experienced by the vehicle is in direct proportion to the square of the vehicle running speed, and the higher the vehicle running speed is, the greater the aerodynamic resistance is. When the running speed of a general vehicle reaches 70km/h, the aerodynamic resistance can account for 1/2 of the running resistance of the whole vehicle, and when the speed reaches 110km/h, the aerodynamic resistance accounts for 70 percent of the running resistance. When the vehicle runs at high speed, the power generated by the fuel is mainly used for overcoming the aerodynamic resistance. The aerodynamic drag is due in part to the large amount of drag created by the air flow blowing against the hub, which rotates at high speed.

During the development process of the aerodynamic performance of the vehicle, a large number of wind tunnel tests are carried out. The method is characterized in that a vehicle is placed in a wind tunnel, the aerodynamic resistance of the vehicle is tested at a specific wind speed, and the shape of a part in the wind tunnel is adjusted according to the state of the aerodynamic resistance to reduce the resistance as much as possible.

As the vehicle is in the wind tunnel test process, the tire and the hub are in direct contact with the belt pulley. They also need to support part of the vehicle's weight while rotating at high speeds, so their stability and safety requirements are very high. In general, aluminum alloy hubs are used in the test.

Although the stability and the safety of the aluminum alloy wheel hub meet the test requirements, the shape of the wheel hub cannot be changed once the wheel hub is manufactured, so that a plurality of sets of wheel hubs and tires must be manufactured in advance by means of experience and simulation analysis before the test. During the test, the hubs and tires were replaced for the test. Each hub model requires a hub and tire set, which increases the hub development costs dramatically.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is how to reduce wheel hub development cost under the prerequisite of guaranteeing whole wheel hub and tire stability and security. The utility model discloses a solve above-mentioned problem with vehicle wheel hub, including the tire assembly of this wheel hub and the vehicle including this tire assembly of removable formula spoke, particularly, according to the utility model discloses an aspect provides:

a hub includes a rim, a spoke removably connected to the rim, and a fastener element for securing the rim and the spoke together.

Optionally, according to an embodiment of the present invention, the rim and the spoke are closely connected by fitting each other.

Optionally, according to an embodiment of the present invention, the rim is provided with a fitting surface, the spoke is provided with a corresponding mating fitting surface, and the rim and the spoke are connected by the fitting surface and the mating fitting surface being joined to each other.

Optionally, according to an embodiment of the present invention, the mating surface has a groove, and the mating surface has a corresponding sawtooth.

Optionally, in accordance with an embodiment of the present invention, the hub is comprised of an aluminum alloy.

Optionally, according to an embodiment of the present invention, the fastening part is a bolt.

Optionally, according to an embodiment of the present invention, the side thickness of the hub is 6 to 10 mm.

Alternatively, according to an embodiment of the present invention, a dividing line at a connecting portion between the rim and the spoke is curved at the rim and the curve is identical to a sectional shape of the rim, and the dividing line is configured in a zigzag shape at the spoke.

According to another aspect of the present invention, the utility model provides a tire assembly, tire assembly includes the tire casing, and above any kind of wheel hub, wherein, the tire casing is fixed on the rim.

According to another aspect of the present invention, the utility model provides a vehicle, it includes above-mentioned tire assembly.

The vehicle wheel hub with replaceable spokes, the tire assembly comprising the wheel hub and the vehicle comprising the tire assembly provided have the advantages that: the spoke can be detached from the rim and the tire and can be independently replaced. Therefore, the whole hub and the tire are not required to be manufactured under the condition of each hub model, and only the spoke is required to be manufactured independently, so that the development cost of the hub can be greatly reduced.

Drawings

The above and other features of the present invention will become apparent with reference to the accompanying drawings, in which,

FIG. 1 is a cross-sectional view of a tire hub;

FIG. 2 is a schematic view of a hub split position;

fig. 3 to 7 are schematic views of the hub broken into a rim and spokes, and the serrated mating surfaces therebetween.

Detailed Description

It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structural modes and implementation modes can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," "third," and the like are used for descriptive and descriptive purposes only and not for purposes of indication or implication as to the relative importance of the respective components.

Referring to fig. 1, a tire hub 100 is shown in cross-section. The hub 100 includes a rim 1, a spoke 2 detachably connected to the rim 1, and a fastening part for fixing the rim 1 and the spoke 2 together, and the fastening part can be a threaded fastener, which is a mechanical part having an internal thread or an external thread, and is generally used as a fastener to facilitate the combination of a plurality of components. The most common threaded fasteners are screws, nuts and bolts. However, other threaded fasteners are also available, such as cage nuts, threaded inserts, threaded rods, etc. For example, the fastening elements can be M8 bolts, respectively fixed on each of the spokes 2 and in the corresponding rim positions. Wherein the rim 1 and the spoke 2 are tightly connected through mutual matching.

Referring to fig. 2, a schematic view of the hub 100 in a split position is shown. As can be seen therein, the assembled tire assembly comprises a rim 1, spokes 2 connected to the rim 1, and tire covers fixed to the rim 1. And a dividing line is calculated at the joint of the rim 1 and the spoke 2 through detailed simulation. Wherein, the parting line is calculated by simulation, and is a uniform 6.5mm curve close to the rim. The curve conforms to the cross-sectional shape of the rim. The parts close to the spokes are in a sawtooth shape, and the main purpose is to limit the relative movement of the spokes of the rim and ensure that the spokes move synchronously in a rotating mode. Since the hub itself is typically only about 5mm thick on the side, it is very difficult to divide it into two parts, a rim and a spoke. The material thicknesses of the rim 1 and the spoke 2 are respectively obtained by calculating the dividing line through simulation, wherein the hub 100 or the materials of the rim 1 and the spoke 2 are made of aluminum alloy. The strength of the rim 1 and the spokes 2 can only be guaranteed if a certain value of the material thickness is reached. The sum of the thicknesses of the two materials constitutes the lateral thickness of the hub 100, so the lateral thickness of the hub 100 needs to be increased to a certain value, but not much, to avoid causing distortion of the aerodynamic performance verification. The side thickness of the hub 100 must be maintained within a certain range (e.g., 6 to 10 mm). In the side surface thickness range, simulation analysis verifies that the strength of the rim 1 and the spoke 2 can be ensured, and the influence on the pneumatic performance is small.

Referring to fig. 3 to 7, there are shown schematic views of the hub broken into a rim and spokes, and the serrated mating surfaces therebetween. Wherein the fastening position is the position shown by the concave circular dots in fig. 4, and the sawtooth mating surface is at the inner side. As can be seen, the hub 100 is separable into a rim 1 and a spoke 2. The rim 1 is provided with a matching surface 11, the spoke 2 is provided with a matching surface 21 matched with the matching surface 11, and the rim 1 and the spoke 2 are connected by mutually jointing the matching surface 11 and the matching surface 21. Wherein a plurality of recesses are present on the mating face 11 and a plurality of projections matching these recesses are present on the counter-mating face 21. The projections may be serrated. The rim 1 is connected to the spoke 2 by engaging the mating surfaces 11 and the mating surfaces 21 by fitting all the protrusions into the recesses.

Furthermore, it can be seen from the figures that a plurality of fastening locations are also arranged on the mating surface 11 and the counter-mating surface 21, the mating being made even tighter by fixing fastening elements (which can be provided with reference to the above-mentioned expressions relating to fastening elements, for example, the fastening element being a bolt of M8, respectively fixed on each spoke of the spokes 2 and on the corresponding rim position).

It should be understood that the tire assembly of the present invention may be mounted on a variety of vehicles, including gasoline vehicles, diesel vehicles, cars, trucks, buses, electric vehicles, and the like. Accordingly, the subject matter of the present invention is also directed to protecting various vehicles equipped with the tire assembly of the present invention. When the parts are installed, the spoke is closely matched with the rim through the matching surface, and then the spoke is connected with the rim through the fastening parts. Then the tyre skin is fixed on the wheel ring, and finally the whole tyre assembly is fixed on the whole vehicle.

It should be understood that all of the above preferred embodiments are exemplary and not restrictive, and that various modifications and changes in the specific embodiments described above, which may occur to those skilled in the art upon reading the teachings of the present invention, are intended to be within the scope of the appended claims.

Claims

1. A wheel hub (100), characterized in that the wheel hub (100) comprises a wheel rim (1), a spoke (2) detachably connected to the wheel rim (1) and fastening elements for fixing the wheel rim (1) and the spoke (2) together.

2. Hub (100) according to claim 1, wherein the rim (1) and the spoke (2) are tightly connected by mutual fitting.

3. The wheel hub (100) according to claim 2, wherein the rim (1) is provided with a mating surface (11) and the spoke (2) is provided with a corresponding mating surface (21), and the rim (1) and the spoke (2) are connected by the mating surfaces (11, 21) and the mating surfaces (11) engaging with each other.

4. Hub (100) according to claim 3, wherein the mating surface (11) has a recess and the mating surface (21) has a corresponding serration.

5. The hub (100) of claim 1, wherein the hub (100) is constructed of an aluminum alloy.

6. Hub (100) according to claim 1, wherein the fastening part is a bolt.

7. The hub (100) of claim 1, wherein the hub (100) has a side thickness of 6 to 10 mm.

8. The wheel hub (100) according to claim 1, characterized in that the division line at the connection between the rim (1) and the spoke (2) is curved at the rim (1) and conforms to the cross-sectional shape of the rim (1), and the division line is configured as a saw-tooth shape at the spoke (2).

9. A tyre assembly comprising a tyre skin, characterized in that it further comprises a wheel hub (100) according to any one of claims 1-8, wherein the tyre skin is fixed on the rim (1).

10. A vehicle, characterized in that it comprises a tyre assembly according to claim 9.