CN213861705U

CN213861705U - Hub assembly for test

Info

Publication number: CN213861705U
Application number: CN202023142315.XU
Authority: CN
Inventors: 姜祖啸; 张世博; 杨帆
Original assignee: SAIC Volkswagen Automotive Co Ltd
Current assignee: SAIC Volkswagen Automotive Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-03
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an it is experimental with wheel hub subassembly installs on the assembly that hangs of experimental motorcycle type, include: the wheel hub frame external member, molding apron external member and adaptation external member. The hub frame kit includes a set of hub frames having different diameters and widths. The molding cover plate kit comprises a group of molding cover plates with different spoke molds. The adapter kit includes a set of adapter pads having different thicknesses. The method comprises the steps of determining a hub framework, a modeling cover plate and an adaptive cushion block, wherein the modeling cover plate is arranged on the outer side of the hub framework, the adaptive cushion block is arranged on the inner side of the hub framework to form a hub assembly, and the hub assembly is arranged on a suspension assembly of a test vehicle type. The hub component for the test is a hub component capable of changing the shape aiming at aerodynamic test development, greatly simplifies the manufacturing and processing process of the test hub, improves the repeated utilization rate of hub parts, and meets the design requirement of carrying out wind resistance optimization measures on various hub shapes in the design stage of the shape.

Description

Hub assembly for test

Technical Field

The utility model relates to an automobile parts field, more specifically say, relate to with the experimental wheel hub subassembly of using in automobile modeling design stage.

Background

In the using process of an automobile, the aerodynamic performance of the automobile is an important factor influencing the driving resistance, particularly, the proportion of the air resistance in the resistance borne by the driving of the automobile is rapidly improved along with the improvement of the speed of the automobile, and when the automobile runs at a high speed (exceeding 110km/h), the fuel consumption of the automobile can be reduced by about 5 percent when the air resistance is reduced by 10 percent, so that the aims of reducing power loss, saving energy and reducing the use cost of a user can be effectively achieved by reducing the wind resistance. At present, the resistance coefficient of the wheel and the wheel cavity part exceeds 30 percent of the total resistance coefficient of the automobile, and the optimization of the wind resistance of the wheel is paid more and more attention. And the wheel hub is used as an important part of the wheel structure and has larger design optimization space. Therefore, in the process of experimental development of vehicle aerodynamics, the related hub optimization becomes an indispensable link for development and optimization.

However, because the manufacturing cycle of the hub is long and the cost is high, the traditional hub development means causes great trouble to the cost and time of the wind tunnel test, and the conventional hub development test can be used only once, so that all the materials, molds, storage spaces and the like are wasted, and the hub development with low wind resistance is in a starting stage for a long time at present. The current situation of the hub optimization development is that the early development mostly depends on computer simulation, but the hub with various shapes cannot be subjected to test verification and optimization; the test hub coming out in the later development stage is basically the real hub of the final volume production, and the optimization potential and the feasibility in time of the hub of the shaped volume production are very low. Therefore, there is a need for a hub assembly that can meet the requirements of a physical hub test during the design and development phase.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an embodiment provides an experimental wheel hub subassembly of using, installs on the assembly that hangs of experimental motorcycle type, and this is experimental to include with the wheel hub subassembly:

the hub framework assembly comprises a group of hub frameworks with different diameters and widths;

the modeling cover plate kit comprises a group of modeling cover plates with different spoke models;

the adapter kit comprises a group of adapter cushion blocks with different thicknesses;

the method comprises the steps of determining a hub framework, a modeling cover plate and an adaptive cushion block, wherein the modeling cover plate is arranged on the outer side of the hub framework, the adaptive cushion block is arranged on the inner side of the hub framework to form a hub assembly, and the hub assembly is arranged on a suspension assembly of a test vehicle type.

In one embodiment, the hub skeleton includes a spoke center ring, spokes radiating outward from the spoke center ring, and a rim connected to ends of the spokes, wherein the spoke center ring and an outer side of the spokes form a molding mounting surface, an inner side of the spoke center ring forms a mounting surface, and the tire is mounted with the rim.

In one embodiment, the spokes are thin spokes, the spoke center ring is provided with bolt holes, the spokes are provided with threaded holes at positions close to the wheel rim, and the diameters of the bolt holes are larger than those of the threaded holes.

In one embodiment, one hub skeleton having a corresponding diameter and width is determined from the hub skeleton package according to the hub size of the test vehicle type.

In one embodiment, the modeling cover plate comprises a central area, a rim ring and a plurality of cover plate spokes, wherein the plurality of cover plate spokes radiate from the central area to the rim ring, the size, the shape and the arrangement mode of the plurality of cover plate spokes form a cover plate modeling, the central area is provided with bolt fixing holes, the cover plate spokes are provided with thread fixing holes, the positions and the sizes of the bolt fixing holes and the thread fixing holes are matched with those of bolt holes and thread holes on the hub framework, the back surfaces of the cover plate spokes are provided with grooves, and the sizes and the positions of the grooves are matched with those of spokes of the hub framework.

In one embodiment, the contoured cover plate covers the outside of the hub shell, the cover plate spokes are aligned with the spokes and the spokes are embedded in grooves on the back of the cover plate spokes, bolts are passed through the bolt fixing holes and the bolt holes, and screws are passed through the screw fixing holes and the screw holes to fix the contoured cover plate on the outside of the hub shell.

In one embodiment, a model cover with a corresponding spoke model is determined from the model cover set according to the hub model of the test vehicle model.

In one embodiment, the adapter pad includes a set of shims and a set of adaptor pads. And selecting a gasket with corresponding thickness according to the wheel track and the wheel hub offset of the test vehicle type for the test vehicle type based on the shaped platform and the shaped suspension assembly. And for a test vehicle type based on an unshaped platform and an unshaped suspension assembly, selecting a switching cushion block with corresponding thickness according to the wheel track and the wheel hub offset of the test vehicle type.

In one embodiment, the gasket is annular, one side of the central hole protrudes to form a central convex ring, the other side of the central hole is a plane, the annular gasket is provided with a plurality of mounting holes which are uniformly distributed along the circumference, one side of the central convex ring of the gasket is mounted on the mounting surface of the inner side of the spoke central ring of the hub framework, one side of the plane of the gasket is mounted on the mounting disc of the suspension assembly, and the gasket is fixed on the mounting disc through the mounting holes by bolts.

In one embodiment, the switching cushion block is annular, two sides of the switching cushion block are both flat surfaces, the annular switching cushion block is provided with a plurality of mounting disc mounting holes and hub mounting holes which are uniformly distributed along the circumference, the mounting disc mounting holes and the hub mounting holes are arranged at intervals, one side of the switching cushion block is mounted on a mounting surface on the inner side of a spoke center ring of the hub framework, the other side of the switching cushion block is mounted on a mounting disc of the suspension assembly, a bolt fixes the switching cushion block to the mounting disc through the mounting disc mounting holes, and the switching cushion block is fixed to the hub framework through the hub mounting holes.

The hub assembly for the test is arranged on a suspension assembly of a test vehicle type to perform a wind resistance test.

The utility model discloses an it is experimental with wheel hub subassembly is to the removable figurative wheel hub subassembly of the experimental development of aerodynamics, has greatly simplified experimental wheel hub's preparation course of working, has improved wheel hub part reuse rate, has realized carrying out the design demand of windage optimal measure to multiple wheel hub molding in molding design stage.

Drawings

Fig. 1 is a view showing a structure of a hub frame in a hub assembly for testing according to an embodiment of the present invention.

Fig. 2 shows a structural diagram of a cover plate in the hub assembly for testing according to an embodiment of the present invention.

Fig. 3 discloses a block diagram of a spacer in a hub assembly for testing according to an embodiment of the present invention.

Fig. 4 shows a block diagram of the adapter pad in the hub assembly for testing according to an embodiment of the present invention.

Fig. 5 is a schematic view of the assembly of the hub assembly for testing according to an embodiment of the present invention.

Detailed Description

Hub design and testing mainly needs to consider three factors: the size of the hub comprises the diameter R of the hub, the width J of the hub, the shape of the hub and the offset distance of the hub, and the distance between the installation surface of the brake disc and the central line of the hub is indicated. If the three elements can be flexibly adjusted, the flexible adjustment of the hub shape and the size can be realized. Therefore, the utility model discloses in physical structure, with the wheel hub split of traditional integration wheel hub skeleton, molding apron and adaptation external member. Manufacturing and processing various hub parts according to corresponding design elements so as to realize one-to-one correspondence of the design elements and the hub parts: the size of the hub is adjusted by the hub framework; the adjustment of the hub modeling is realized by a modeling cover plate; the adjustment of the hub offset is realized by an adapting sleeve (comprising a gasket or a switching cushion block). In addition, aiming at platforms of different vehicle types, the maximum aperture related to the platform is selected in the center hole design of the wheel hub, and the conversion between the half shaft and the aperture of the wheel hub is realized through the gasket/the switching cushion block. Therefore, a replaceable modeling hub platform capable of freely matching various design requirements is built. When a relevant hub test is carried out, corresponding specifications are selected from the three parts respectively according to design requirements, and the fast matching of the test hub and the high utilization rate of the hub parts are realized.

According to the utility model discloses an embodiment provides an experimental wheel hub subassembly that uses, and this experimental wheel hub unit mount is on the assembly that hangs of experimental motorcycle type, and this experimental wheel hub subassembly includes: the wheel hub frame external member, molding apron external member and adaptation external member. The hub frame kit includes a set of hub frames having different diameters and widths. The molding cover plate kit comprises a group of molding cover plates with different spoke molds. The adapter kit includes a set of adapter pads having different thicknesses. When the test is carried out, a hub framework, a modeling cover plate and an adaptive cushion block are determined according to the requirements of a test vehicle type, the modeling cover plate is installed on the outer side of the hub framework, the adaptive cushion block is installed on the inner side of the hub framework to form a hub assembly, the hub assembly is installed on a suspension assembly of the test vehicle type, then a wind resistance test is carried out, and the aerodynamics of the test vehicle type are adjusted and tested.

The hub frame kit includes a set of hub frames having different diameters R and widths J. The respective hub skeletons, although different in size, have similar structures. Fig. 1 is a view showing a structure of a hub frame in a hub assembly for testing according to an embodiment of the present invention. Referring to fig. 1, the hub skeleton 100 includes a spoke center ring 101, spokes 102 radiating outward from the spoke center ring, and a rim 103 connected to ends of the spokes. The outer sides of the spoke center ring 101 and the spokes 102 form a molding mounting surface, the inner side of the spoke center ring 101 forms a mounting surface, and the tire is mounted with the rim 103. The spokes in the hub skeleton are primarily supporting, and thus the spokes 102 are thin spokes. The spoke center ring 101 is provided with bolt holes 111, the spokes 102 are provided with threaded holes 121 at positions close to the rim 103, and the diameters of the bolt holes 111 are larger than those of the threaded holes 121. The bolt holes 111 and the screw holes 121 are used to fix the modeling cover plate 200. In the illustrated embodiment, the hub shell is a five-spoke configuration with five thin spokes 102 radiating outwardly from a spoke center ring 101. In other embodiments, other numbers of spokes may be provided as desired. In the embodiment shown in fig. 1, the number of bolt holes 111 is 5, the number of threaded holes 121 is 5, and one threaded hole is provided on each spoke. When the hub skeleton is selected, one hub skeleton with a corresponding diameter R and width J is determined from the hub skeleton kit according to the hub size of the test vehicle type.

The molding cover plate kit comprises a group of molding cover plates with different spoke molds. Fig. 2 shows a structural diagram of a cover plate in the hub assembly for testing according to an embodiment of the present invention. Referring to fig. 2, the contoured cover plate 200 includes a central region 201, an edge ring 202, and a plurality of cover plate spokes 203. The plurality of cover spokes 203 radiate from the central area 201 to the rim 202, the size, shape and arrangement of the plurality of cover spokes 203 form a cover shape, and the combination of the size, shape and arrangement of the cover spokes 203 is determined according to the requirements of the vehicle type, namely the shape of the wheel hub of the vehicle type. The illustrated embodiment is merely to illustrate the configuration of the shaped cover plate and is not intended to limit the specific spoke configuration of the shaped cover plate. With continued reference to fig. 2, the central area 201 is provided with bolt fixing holes 211, the cover plate spokes 203 are provided with screw fixing holes (not shown), and the positions and sizes of the bolt fixing holes and the screw fixing holes are matched with those of bolt holes and screw holes on the hub skeleton. The back of the cover spokes 203 are provided with grooves (not shown) that are sized and positioned to match the spokes 102 of the hub shell. When assembled, the contoured cover plate 200 covers the outside of the hub shell 100. The cover spokes 203 are aligned with the spokes 102 and the spokes fit into recesses in the back of the cover spokes, bolts are passed through the bolt fixing holes and bolt holes, and screws are passed through the screw fixing holes and threaded holes to fix the molded cover plate 200 to the outside of the hub shell 100. In one embodiment, the contoured cover plate 200 is provided with a thickness such that the grooves in the back of the cover plate spokes are of sufficient depth to better mate with the spokes of the hub shell. In one embodiment, a model cover with a corresponding spoke model is determined from the model cover set according to the hub model of the test vehicle model.

Because the wheel hub still needs the installation brake disc in the real car structure, consequently there is wheel hub offset distance, the distance of brake disc installation face and wheel hub central line. In order to also embody this wheel hub offset distance in experimental wheel hub subassembly, the utility model discloses use the adaptation external member, the adaptation external member includes a set of adaptation cushion that has different thickness. In one embodiment, the adapter pad includes a set of shims and a set of adaptor pads. The gasket and the switching cushion block have different application scenes.

And selecting a gasket with corresponding thickness according to the wheel track and the wheel hub offset of the test vehicle type for the test vehicle type based on the shaped platform and the shaped suspension assembly. The gasket is mainly applied to the development of brand new vehicle types and modified wheel hub vehicle types of existing platforms, and is used for realizing the matching of the wheel hub aperture and the axle diameter and the adjustment of the wheel hub offset distance, so that one set of wheel hub can be arranged on vehicles with different wheel hub offset distance (ET value) requirements, the coaxiality of the wheel hub and the axle is ensured, and the rotation stability of the wheel is realized. Fig. 3 discloses a block diagram of a spacer in a hub assembly for testing according to an embodiment of the present invention. Referring to fig. 3, the spacer 300 has a ring shape, and a central hole 301 is formed to protrude at one side thereof to form a central convex ring 302 and at the other side thereof to be a flat surface. The annular gasket 300 is provided with a plurality of mounting holes 303 which are uniformly distributed along the circumference, one side of a central convex ring 302 of the gasket is mounted on a mounting surface on the inner side of a spoke central ring of the hub framework, one side of the plane of the gasket is mounted on a mounting disc of a suspension assembly, and bolts fix the gasket on the mounting disc through the mounting holes 303. The bore size of the central bore 301 matches the half-shaft diameter of the suspension assembly and a variety of shims with central bores of different bore sizes may be provided for selection. The axial thickness of the shim 300 is determined by the hub offset (ET value) requirement. The structure size of the positioning column is determined by the sizes of the corresponding parts of the hub framework and the mounting disc, and the coaxiality among the mounting disc, the gasket and the hub is ensured.

And for a test vehicle type based on an unshaped platform and an unshaped suspension assembly, selecting a switching cushion block with corresponding thickness according to the wheel track and the wheel hub offset of the test vehicle type. The switching cushion block is mainly applied to the development and design of new vehicle models of new platforms, is used for realizing the matching of the diameter of a wheel hub and the diameter of an axle and the adjustment of the offset distance of the wheel hub, and the front and rear suspension assemblies are not produced in batches and are generally replaced by the existing suspension assembly with a low level. For example, the wheel track requirement of a brand-new platform (in research) is 1675mm, and a scheme of mass production of a short wheel track 1629mm version and addition of a switching cushion block can be adopted for replacement. The switching cushion block has the functions of realizing wheel tread matching and mounting the hub framework. Fig. 4 shows a block diagram of the adapter pad in the hub assembly for testing according to an embodiment of the present invention. The adapting cushion block 400 is annular, two sides of the adapting cushion block 400 are both planar, and the annular adapting cushion block 400 is provided with a plurality of mounting disc mounting holes 401 and hub mounting holes 402 which are uniformly distributed along the circumference. Mounting disc mounting holes 401 and hub mounting holes 402 are arranged at intervals, one side of the switching cushion block 400 is mounted on a mounting surface on the inner side of a spoke center ring of the hub framework, and the other side of the switching cushion block 400 is mounted on a mounting disc of the suspension assembly. The bolt passes through the mounting disc mounting hole and fixes the switching cushion to the mounting disc, fixes the switching cushion to the wheel hub skeleton through the wheel hub mounting hole. The adapter pad 400 also has a central hole 403, and the diameter of the central hole 403 matches the diameter of the half shaft of the suspension assembly, so that a variety of adapter pads having central holes with different diameters can be provided for selection. In the illustrated embodiment, the switching cushion block is provided with 5 mounting disk mounting holes and 5 hub mounting holes which are distributed in a circular ring shape, and the two mounting holes are arranged in a staggered manner and are respectively used for being connected with the mounting disk and the hub framework through bolts. When the hub is installed, the switching cushion block is fixed on the installation disc, and then the hub framework is fixed on the switching cushion block.

Fig. 5 is a schematic view of the assembly of the hub assembly for testing according to an embodiment of the present invention. This experimental wheel hub subassembly includes: the wheel hub frame external member, molding apron external member and adaptation external member. The hub frame kit includes a set of hub frames having different diameters and widths. In the embodiment shown in FIG. 5, five different diameters from R17 to R21 are shown, with the hub skeleton having different thicknesses from 7J to 9J in the same diameter. The molding cover plate kit comprises a group of molding cover plates with different spoke molds. In the illustrated embodiment, the styling cover panels, including various styling designs, are expressed in text. The adapter kit includes a set of adapter pads having different thicknesses. The adaptive cushion block is divided into a gasket and a switching cushion block. The gasket and the switching cushion block respectively have two sets of parameters; pore size and thickness. The aperture of the gasket is divided into a vehicle type platform I to a vehicle type platform III according to the vehicle type. The thickness of the gasket is 2 mm-10 mm. The aperture of the switching cushion block is divided into a vehicle type platform I to a vehicle type platform III according to the vehicle type. The thickness of the switching cushion block is 20 mm-30 mm.

To sum up, this patent wheel hub's structural design not only greatly improved the reuse rate of each part of wheel hub on the basis of guaranteeing wheel hub working strength, rationality and security, accelerated experimental wheel hub's manufacturing speed simultaneously and changed the matching speed, saved economic cost and time cost to a great extent. In the aspect of project development flow planning, a development node of hub optimization is greatly advanced by using a replaceable modeling hub platform, and in the early stage of development of a whole vehicle, the hub wind resistance optimization is realized in a mode of combining computer simulation and wind tunnel test. This will greatly improve the optimization potential of the vehicle hub and the time latitude of project development.

It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is obvious that the present invention is not limited to the above embodiments, and similar changes or modifications can be directly derived or easily suggested by those skilled in the art from the disclosure of the present invention, and all should fall within the protection scope of the present invention. The above-described embodiments are provided to enable persons skilled in the art to make or use the invention, and many modifications and variations may be made to the above-described embodiments by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of the invention is not limited by the above-described embodiments, but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims

1. The utility model provides an it is experimental with wheel hub subassembly installs on the suspension assembly of experimental motorcycle type which characterized in that includes:

2. The test hub assembly of claim 1, wherein the hub skeleton includes a spoke center ring, spokes radiating outwardly from the spoke center ring, and a rim connected to ends of the spokes, wherein the spoke center ring and an outer side of the spokes form a contoured mounting surface, an inner side of the spoke center ring forms a mounting surface, and the tire is mounted to the rim.

3. The test hub assembly of claim 2, wherein the spokes are thin spokes, the spoke center ring is provided with bolt holes, the spokes are provided with threaded holes at positions near the rim, and the diameter of the bolt holes is larger than the diameter of the threaded holes.

4. A test hub assembly as set forth in claim 3 wherein a hub shell of corresponding diameter and width is defined from the hub shell assembly in accordance with the hub size of the test vehicle type.

5. The hub assembly of claim 3, wherein the contoured cover plate includes a central region, a rim ring, and a plurality of cover plate spokes radiating from the central region to the rim ring, the cover plate spokes being sized, shaped, and arranged to form the cover plate contour, the central region having bolt securing holes, the cover plate spokes having threaded securing holes, the bolt securing holes and the threaded securing holes being positioned and sized to mate with the bolt holes and the threaded holes in the hub shell, the cover plate spokes having recesses in a back side thereof, the recesses being sized and positioned to mate with the spokes of the hub shell.

6. The test hub assembly of claim 5, wherein the contoured cover plate covers the outside of the hub shell, the cover plate spokes are aligned with the spokes and the spokes fit into recesses in the back of the cover plate spokes, the bolts pass through the bolt securing holes and the bolt holes, and the screws pass through the threaded securing holes and the threaded holes to secure the contoured cover plate to the outside of the hub shell.

7. The test hub assembly of claim 6, wherein one of the style sheets having a corresponding spoke style is determined from the style sheet kit according to the hub style of the test vehicle model.

8. The test hub assembly of claim 2, wherein the adapter pad includes a set of shims and a set of adaptor pads;

selecting a gasket with corresponding thickness according to the wheel track and the wheel hub offset distance of a test vehicle type based on the shaped platform and the shaped suspension assembly;

and for a test vehicle type based on an unshaped platform and an unshaped suspension assembly, selecting a switching cushion block with corresponding thickness according to the wheel track and the wheel hub offset of the test vehicle type.

9. The test hub assembly of claim 8,

the gasket is annular, and one side protrusion of centre bore forms central bulge loop, and the opposite side is the plane, has the mounting hole of several along circumference evenly distributed on the annular gasket, and on the assembly installation face of the inboard of spoke centre loop of wheel hub skeleton was installed to central bulge loop one side of gasket, on the mounting disc of hanging the assembly was installed to plane one side of gasket, the bolt was fixed the gasket to the mounting disc through the mounting hole.

10. The test hub assembly of claim 8,

the switching cushion block is annular, the two sides of the switching cushion block are planes, a plurality of mounting disc mounting holes and wheel hub mounting holes which are uniformly distributed along the circumference are formed in the annular switching cushion block, the mounting disc mounting holes and the wheel hub mounting holes are arranged at intervals, one side of the switching cushion block is mounted on the mounting surface of the inner side of the spoke center ring of the wheel hub framework, the other side of the switching cushion block is mounted on the mounting disc of the suspension assembly, the switching cushion block is fixed to the mounting disc through the mounting disc mounting holes by bolts, and the switching cushion block is fixed to the wheel hub framework through the wheel hub mounting holes.