RU2774462C1 - Wheel disk - Google Patents

Abstract

FIELD: automotive industry.

SUBSTANCE: invention relates to the automotive industry. The wheel disk contains a rim (10), and the surface of the axial end of the rim (10) forms the first connecting surface (11); jumper (20), and part of the surface of the axial end of the jumper (20) forms the second connecting surface (21). The jumper (20) is laser-welded on the first connecting surface (11) with the second connecting surface (21). The structure (100) of the weld bead for the fixed connection of the rim (10) and the bridge (20) is formed at the point of contact of the first connecting surface (11) and the second connecting surface (21). The structure (100) of the weld bead is formed by a part of the rim (10) and a part of the bridge (20) by melting them and then joining them.

EFFECT:

increasing the strength of the rim.

9 cl, 8 dwg

Description

Technical field

The invention relates to the technical field of vehicles and, in particular, relates to an improvement in the design of the rim. The invention claims the priority of Patent Application No. 201910667209.6 entitled "Rim" filed with the National Intellectual Property Office of China on July 23, 2019.

State of the art

According to the prior art known to the inventors, traditional welding methods such as gas shielded welding and submerged arc welding are used in most cases to connect the rim and web. Traditional welding methods have a wide heat-affected zone, thereby reducing the strength of the rim itself and causing inadequate stability of the rim structure; furthermore, the structure of the weld bead of the wheel rim manufactured and formed by the welding methods known to the inventors is inappropriate, and when the height of the weld bead structure is too high, it will adversely affect the mounting of the tire, causing air leakage to occur and emergency situations. According to the prior art known to the inventors, the turning procedure is generally increased, and as a result of turning, a very large part of the weld bead structure is removed, which increases the complexity of the manufacturing process of the rim; in addition, when performing a radial load test on the end portions of the weld bead structure, a crack tends to occur, which further indicates the instability of the machined wheel disk, which is produced by welding methods, which cannot meet the performance requirements for relatively long service life of the rim.

Disclosure of invention

Some embodiments of the invention provide a vehicle wheel rim that solves the prior art problems known to the inventors that the weld bead structure formed by conventional rim and web welding methods is impractical, thereby causing inadequate stability of the wheel rim structure, that it cannot meet the requirements for the strength of the welded joint of the rim and the bridge, and thereby causing inadequate stability of the joint; that have a negative impact on the safety of operation and the service life of the rim.

Some embodiments of the invention provide a wheel rim that comprises: a rim, the axial end surface of the rim forming a first connecting surface; and a web, wherein part of the surface of the axial end of the web forms a second connecting surface, and the web is laser welded on the first connecting surface with the second connecting surface, the weld bead structure for the fixed connection of the rim and the web is formed at the contact point of the first connecting surface and the second connecting surface. surface, and the structure of the weld bead is formed by the rim part and the web part by melting them and then joining them.

In some embodiments of the invention, the rim has a rim body and a curved flange, which are connected to each other, and the end surface of the curved flange, facing the side of the bridge, forms the first connecting surface, and the first connecting surface is fitted to the second connecting surface, and the structure of the welded bead the seam is located in the area closed by the first connecting surface and the second connecting surface.

In some embodiments of the invention, the rim has a rim body and a curved flange, which are connected to each other, and the end surface of the curved flange, facing the side of the web, forms the first connecting surface, and the first connecting surface is fitted to the second connecting surface, and the width of the bead structure weld in the radial direction of the rim is greater than or equal to the width of the first connecting surface in the radial direction of the rim.

In some embodiments of the invention, there is one curved flange, wherein the curved flange extends continuously in the circumferential direction of the rim body, and the second connecting surface has an annular shape adapted to the curved flange.

In some embodiments of the invention, a portion of the web protrudes towards the rim and forms a collar, and the curved flange is adapted for adaptive engagement with the collar.

In some embodiments, a plurality of curved flanges are provided, wherein the plurality of curved flanges are spaced in the circumferential direction of the rim body, the second connecting surface has a plurality of additional surface segments spaced in the circumferential direction of the web, and the plurality of curved flanges co-operate with the plurality of additional surface segments in one-to-one correspondence.

In some embodiments of the invention, it is provided that a portion of the web protrudes towards the rim and forms a plurality of protrusions, and the plurality of curved flanges are adapted to adaptively connect with the plurality of protrusions in a one-to-one correspondence.

In some embodiments of the present invention, the path of the continuation of the weld bead structure is the same as the path of the curved flanges in the circumferential direction, and the length of the weld bead structure is equal to the length of the curved flanges.

In some embodiments, the curved flange is perpendicular to the body of the rim.

In some embodiments of the invention, both the first connecting surface and the second connecting surface are flat surfaces.

During the use of the technical solutions of some embodiments of the invention, the rim is fixedly connected to the bridge by laser welding, and the heat-affected zone of laser welding is relatively small, and the interaction of the first connecting surface of the rim and the second connecting surface of the bridge ensures that the rim and the bridge have a sufficient contact area; Thus, laser welding helps to increase the strength of the joint at the welding point of the rim and web, and contributes to the strength of the rim structure, thereby ensuring complete safety of use and a long service life of the rim. In addition, the weld bead structure formed at the welding point between the rim and the web is formed jointly by the rim part and the web part. Such a weld bead structure is not only miniature, but also stable, since laser welding is efficient and accurate, and damages both the rim and the web to a small extent; in addition, the structure of the weld bead formed by the web part and the rim part, which are melted and subsequently joined, has a correct overall structure, and the strength of the weld bead structure is greatly increased, so that the wheel rim will not be easily broken by external force, thereby significantly increasing the stability of the connection between the rim and the bridge.

At the same time, laser welding can be used to weld high-strength material, and laser welding has the characteristics of short welding time and low welding power consumption, thereby improving the production efficiency of wheel rims and reducing the production cost of vehicle wheel rims. . In addition, a small amount of smoke is generated during laser welding, which provides improved working conditions for the welder and protects the environment.

The description drawings that form part of some embodiments of the invention are used to better understand some embodiments of the invention, and the illustrative embodiments of the invention and their illustrations are used to explain some embodiments of the invention, and not create undue restrictions on some embodiments of the invention.

Brief description of the drawings

In FIG. 1 schematically shows a rim and web in an unwelded state of a wheel rim according to Embodiment I of the invention, front sectional view;

in fig. 2 - section A according to Fig. 1 is an enlarged view;

in fig. 3 - rim and jumper after welding of the rim according to FIG. 1, front view in section;

in fig. 4 - section B according to Fig. 3 is an enlarged view;

in fig. 5 is a rim and web in an unwelded state of a rim according to embodiment II of the invention, front sectional view;

in fig. 6 - section C according to Fig. 5 is an enlarged view;

in fig. 7 - rim and jumper after welding of the rim according to FIG. 5 is a front sectional view;

in fig. 8 is a schematic enlarged section D of FIG. 7 is an enlarged view.

Item Number List

10 - rim

11 - the first connecting surface

12 - rim body

13 - curved flange

20 - jumper

21 - second connecting surface

22 - annular protrusion

100 - weld bead structure

Embodiments of the invention

Hereinafter, the technical solutions of the embodiments of the invention will be described clearly and in detail with reference to the attached drawings. Of course, the described embodiments are only part of the embodiments of the invention, and not all variants of the invention. The following description of at least one exemplary embodiment is for illustrative purposes only and is not intended in any way to limit certain embodiments of the invention and any applications or uses thereof. All other embodiments obtained by a person of ordinary skill in the art on the basis of embodiments of the invention without inventive efforts should fall within the protection scope of some embodiments of the invention.

In order to solve the above problems in the field in which the weld bead structure formed by welding the rim and web by conventional welding methods is inappropriate, thereby causing inadequate stability of the wheel disk structure, which cannot meet the strength requirements welded connection of the rim and bridge, and thereby causing inadequate stability of the connection of the rim and bridge, which affects the safety of use and the service life of the rim, a number of embodiments of the invention provide a rim.

Embodiment I

As shown in FIG. 1 - 4, the wheel disk contains a rim 10 and a jumper 20, and the surface of the axial end of the rim 10 forms the first connecting surface 11, part of the surface of the axial end of the jumper 20 forms the second connecting surface 21, the jumper 20 is laser welded on the first connecting surface 11 with the second connecting surface surface 21, the weld bead structure 100 for the fixed connection of the rim 10 and the web 20 is formed at the point of contact of the first connecting surface 11 and the second connecting surface 21, and the weld bead structure 100 is formed by a part of the rim 10 and a part of the web 20 by melting and then joining them .

The rim 10 is fixedly connected to the web 20 by laser welding, the heat-affected zone of laser welding is relatively small, and the interaction of the first connecting surface 11 of the rim 10 and the second connecting surface 21 of the web 20 ensures that the rim 10 and the web 20 have a sufficient contact area; thus, laser welding helps to increase the strength of the joint at the welding point of the rim 10 and web 20 and helps to improve the structural strength of the rim, thereby ensuring complete safety of use and a long service life of the rim. In addition, the weld bead structure 100 formed at the welding point between the rim 10 and the web 20 is formed jointly by the rim part 10 and the web part 20. Such a weld bead structure 100 is not only miniature, but also stable because laser welding is efficient and accurate and slightly damages both the rim and the bridge; in addition, the weld bead structure 100 formed by the web portion 20 and the rim portion 10, which are melted and subsequently joined, has a correct overall structure, and the strength of the weld bead structure 100 is greatly increased so that the wheel rim will not be easily destroyed by external forces, thereby significantly increasing the stability of the connection between the rim 10 and the web 20.

At the same time, laser welding can be used to weld high-strength material, and laser welding has the characteristics of short welding time and low welding power consumption, thereby improving the production efficiency of wheel rims and reducing the production cost of wheel rims. In addition, a small amount of smoke is generated during laser welding, which provides improved working conditions for the welder and protects the environment.

It should be noted that due to the relative positioning during assembly of the rim 10 and the web 20 of the rim, in some embodiments of the invention, the aesthetic appearance of the rim is significantly improved, i.e. in relation to the full surface of the rim, the area of the web 20 is larger than the area covered by the rim 10, which allows the web 20 to cover the rim 10 in an effect. will be seen and therefore also improved aesthetic appearance of the vehicle, which uses the rim according to several embodiments of the invention.

As shown in FIG. 2 and FIG. 4, the rim 10 has a body 12 and a curved flange 13, which are connected to each other, and the end surface of the curved flange 13, facing the side of the web 20, forms the first connecting surface 11, and the first connecting surface 11 is fitted to the second connecting surface 21, and the weld bead structure 100 is located in the region covered by the first joint surface 11 and the second joint surface 21. The weld bead structure 100 at such a location ensures that the rim 10 and web 20 have sufficient bond strength so that the wheel rim can absorb sufficient dynamic load in the subsequent period, ensuring the normal operation of the rim and increasing the usability of the rim. In addition, with regard to the appearance of the rim, there is no noticeable irregular structure at the junction of the rim 10 and the web 20, and therefore the aesthetic appearance of the rim is greatly improved, the appearance of batch-produced rims is maintained, and customer satisfaction is improved. In addition, the fitting of the first bonding surface 11 and the second bonding surface 21 ensures that the rim 10 and web 20 have sufficient contact with each other, and ensures that the rim and web have sufficient contact area. When the rim is subjected to impact loads, damage to the rim is avoided due to the concentration of stresses on the contact surface of the rim 10 and the web 20, and the stability of the operation of the rim is also improved.

Of course, in another embodiment, not shown in the figures in several embodiments of the invention, the rim 10 has a body 12 and a curved flange 13, which are connected to each other, and the end surface of the curved flange 13, facing the side of the jumper 20, forms the first connecting surface 11, wherein the first bonding surface 11 and the second bonding surface 21 are bonded with an adhesive. The width of the weld bead structure 100 in the radial direction of the rim 10 is greater than or equal to the width of the first connecting surface 11 in the radial direction of the rim 10. The weld bead structure 100 in this shape and location allows sufficient laser welding to be performed in the region of the contact surface of the rim 10 and web 20, so that the weld bead structure 100 occupies a large area, thereby greatly enhancing the stability of the connection of the rim 10 and web 20, and when the rim as a whole is subjected to impact loads of varying intensity, the rim 10 and web 20 are not destroyed anyway. at the location of the structure 100 of the weld bead.

In another embodiment, provided in some embodiments of the present invention, there is one curved flange 13, and the curved flange 13 extends continuously in the circumferential direction of the body 12 of the rim, and the second connecting surface 21 has an annular shape adapted to the curved flange 13. The rim 10, having such a shaped structure can provide a sufficient contact area with the web 20, ensure that the rim 10 is supported by the web at various locations in the circumferential direction, and improve the overall stability of the rim structure.

Of course, in an alternative embodiment of the invention, not shown in the figures, based on the fact that sufficient strength is provided for the connection of the rim 10 and the web 20, the need for consumables for machining and manufacturing is minimized to the maximum extent, which reduces the cost of machining and manufacturing and reduce the overall weight of the rim. A plurality of curved flanges 13 are provided, wherein the plurality of curved flanges 13 are spaced in the circumferential direction of the rim body 12, the second connecting surface 21 has a plurality of additional surface segments spaced in the circumferential direction of the web 20, and the plurality of curved flanges 13 cooperate with the plurality of additional segments. surfaces in a one-to-one correspondence.

In some embodiments of the invention, the curved flange 13 is perpendicular to the body 12 of the rim. The rim 10 with this design form not only facilitates machining and manufacturing, but also facilitates the fitting of the second connecting surface 21 of the bridge 20 and the first connecting surface 11 of the rim 10.

Similarly, considering the effect of matching the surface of the rim 10 and web 20 and facilitating the machining and fabrication of the rim 10 and web 20, in some embodiments, both the first bonding surface 11 and the second bonding surface 21 are flat surfaces.

In some embodiments, the path of the weld bead structure 100 is the same as that of the curved flange 13 in the circumferential direction, and the length of the weld bead structure 100 is equal to the length of the curved flange 13. Thus, welding stability of the rim 10 and web 20 is further improved. .

Embodiment II

As shown in FIG. 5 to 8, this embodiment differs from embodiment I in that a portion of web 20 protrudes toward rim 10 and forms an annular boss 22, and a curved flange 13 is adapted to easily fit into an annular boss 22. Thus, a secure fit of the surfaces of the rim 10 and web 20, and collar 22 and bent flange 13 can also serve to prevent accidental assembly of rim 10 and web 20, effectively ensuring that the axes of rim 10 and web 20 are aligned and ensuring that the rim forms a body of revolution .

Most importantly, a portion of web 20 protrudes toward rim 10, which effectively increases the clearance at the contact junction of the opposing end surfaces of web 20 and rim 10 to provide sufficient working space to perform the laser welding operation of rim and web, thereby ensuring that the welder performs stable and reliable laser welding of the rim and web.

Of course, in another embodiment not shown in the drawings, similarly, by providing a stable connection of the fitted surfaces of the rim 10 and the web 20, the effect of mounting with protection against accidental errors in the assembly of the rim 10 and the web 20 can also be obtained, and the aesthetic appearance of the rim structure is also improved. ; and it is provided that a portion of the web 20 protrudes towards the rim 10 and forms a plurality of protrusions, and a plurality of curved flanges 13 are adapted to easily fit the plurality of protrusions in a one-to-one correspondence.

It should be noted that the terms used in this document only serve to describe specific embodiments and are not intended to limit examples of embodiments according to the invention. In the context of this document, it is provided that the singular form also contains the plural form, unless the context clearly indicates otherwise, and it should also be understood that the terms "comprises" and/or "comprising" used in the description, determine the presence features, steps, operations, devices, components and/or combinations thereof.

Unless specifically stated otherwise, the relative arrangement of the components and steps, numerical expressions and numerical values declared in these embodiments, do not limit the scope of the invention. In addition, it should be understood that for convenience of description, the dimensions of the parts shown in the drawings do not correspond to the actual proportional relationship. Techniques, methods and devices known to the person of ordinary skill in the relevant field may not be described in detail, but where necessary, these techniques, methods and devices should be considered as part of the description that must be claimed. In all examples shown and described in this document, any specific values should be considered as an example only and not as a limitation. Thus, other examples of illustrative embodiments may have other meanings. It should be noted that like numbers and symbols designate like elements in the drawings, so an element designated once in a drawing need not necessarily be described in the description of subsequent drawings.

In the context of this document, for convenience of description, terms relating to the spatial arrangement, such as "on", "top", "on the top surface" and "top", etc., can be used to describe the spatial relative positions of a single device or element and other devices or elements shown in the drawings. It should be understood that the terms relating to the spatial arrangement, provide for various orientations in use or operation in addition to the orientation of the device shown in the drawings. For example, if the devices in the drawings are reversed, devices described as "on top of other devices or structures" or "on other devices or structures" will be oriented "below other devices or structures" or "under other devices or structures" in the following. Accordingly, the explanatory term "above" may include both orientations, ie. "above" and "below". The device can also be positioned in a variety of ways (non-90 degree rotation or other orientations) and the descriptions used here regarding spatial arrangement are to be construed accordingly.

It should be noted that the terms used in this document only serve to describe specific embodiments and are not intended to limit examples of embodiments according to the invention. In the context of this document, it is provided that the singular form also contains the plural form, unless the context clearly indicates otherwise, and it should also be understood that the terms "includes" and/or "comprising" as used in this description determine the presence of features , stages, operations, devices, components and / or combinations thereof.

It should be noted that the terms "first", "second", etc. in the description, claims and related drawings of some embodiments of this invention are used to distinguish between like objects and should not necessarily be used to describe a specific sequence or order. It should be appreciated that the data used may be interchangeable when appropriate, so that the embodiments of the invention described in this document may be implemented in sequences other than those illustrated and described in this document.

The above description is presented only as examples of embodiments of this invention and is not intended to limit this invention. A person skilled in the art can envisage a number of modifications and variations of this invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and idea of this invention will fall within the protection scope of this invention.

Claims (12)

1. The rim contains: a rim (10), wherein the surface of the axial end of the rim (10) forms the first connecting surface (11); and jumper (20), moreover, a part of the surface of the axial end of the jumper (20) forms the second connecting surface (21), and the jumper (20) is laser welded by the first connecting surface (11) with the second connecting surface (21), structure (100) of the weld bead for the fixed connection of the rim (10) and the web (20) is formed at the point of contact of the first connecting surface (11) and the second connecting surface (21), and the structure (100) of the weld bead is formed by a part of the rim (10) and a part of the web (20) through their melting and subsequent connection, while the rim (10) has a body (12) of the rim and a curved flange (13), which are connected to each other, and part of the jumper (20) protrudes to the rim (10) so that it forms an annular protrusion (22), and the curved flange (13 ) adapted for adaptive connection with collar (22). 2. Wheel disk according to claim 1, in which the end surface of the curved flange (13), facing the side of the jumper (20), forms the first connecting surface (11), and the first connecting surface (11) is fitted to the second connecting surface (21 ), and the structure (100) of the weld bead is located in the area covered by the first connecting surface (11) and the second connecting surface (21). 3. Wheel disk according to claim 1, in which the end surface of the curved flange (13), facing the side of the jumper (20), forms the first connecting surface (11), and the first connecting surface (11) is fitted to the second connecting surface (21 ), and the width of the structure (100) of the weld bead in the radial direction of the rim (10) is greater than or equal to the width of the first connecting surface (11) in the radial direction of the rim (10). 4. Wheel drive according to any one of paragraphs. 2 or 3, in which there is one curved flange (13), wherein the curved flange (13) continuously extends in the circumferential direction of the rim body (12), and the second connecting surface (21) has an annular shape adapted to the curved flange (13). 5. Wheel drive according to any one of paragraphs. 2 or 3, in which a plurality of curved flanges (13) are provided, moreover, a plurality of curved flanges (13) are located at intervals in the circumferential direction of the body (12) of the rim, the second connecting surface (21) has a plurality of segments of additional surfaces located at intervals in the circumferential direction of the web (20), and a plurality of curved flanges (13) interact with a plurality of additional surface segments in a one-to-one correspondence. 6. The rim according to claim 5, in which part of the web (20) protrudes to the rim (10) so that it forms a plurality of protrusions, and a plurality of curved flanges (13) are adapted for adaptive connection with a plurality of protrusions in one-to-one correspondence. 7. Wheel drive according to any one of paragraphs. 2 or 3, in which the path of the weld bead structure (100) is the same as that of the curved flange (13) in the circumferential direction, and the length of the weld bead structure (100) is equal to the length of the curved flange (13). 8. Wheel drive according to any one of paragraphs. 2 or 3, in which the curved flange (13) is perpendicular to the body (12) of the rim. 9. A rim according to claim 3, wherein both the first connecting surface (11) and the second connecting surface (21) are flat surfaces.

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