Steel ring reinforcing structure for spare tire wheel and spare tire wheel with steel ring reinforcing structure

Abstract

The invention relates to the field of wheels, in particular to a steel ring reinforcing structure for a spare tire wheel and the spare tire wheel with the steel ring reinforcing structure. An assembly through hole is formed in the middle area of the annular base plate; the annular base plate is further provided with a bolt penetrating hole set. The bolt penetrating hole group comprises a plurality of penetrating holes which are uniformly distributed at intervals; the plurality of penetrating holes are annularly distributed in the annular base plate; the penetrating holes in the annular base plate correspond to steel ring bolt holes in a steel ring in the spare tire wheel in a one-to-one mode. Through the arrangement of the steel ring reinforcing structure, the structural strength of the installation position of the wheel bolt on the steel ring is guaranteed, meanwhile, through the arrangement of the annular base plate, the spherical surface of the wheel bolt on the spare tire wheel is in contact and pressed with the base plate ball socket and the steel ring ball socket, the limitation of the thickness of a steel ring steel plate is broken through, and the area of the steel ring ball socket is increased; the contact area of the wheel bolt and the ball socket on the steel ring is increased, the stress of the ball socket on the steel ring is more uniform, and the service life of the steel ring is prolonged.

Description

Technical Field

[0001] The invention relates to the field of wheels, in particular to a steel rim reinforcement structure for a spare tire wheel and a spare tire wheel having the steel rim reinforcement structure. Background Art

[0002] As automobile fuel consumption has received more and more attention, lightweight design is becoming more and more popular in automobile design.

[0003] When designing a steel rim spare wheel, the impact strength of the wheel and the anti-loosening of the wheel bolts must be met.

[0004] Due to the limitation of the thickness of the spare wheel rim steel plate, the lightweight design of steel rim wheels is not widely used: in order to meet the impact strength performance, the thickness of the raw material of the spare wheel rim steel plate is increased, but this will cause the overall thickness of the steel rim to become thicker, wasting steel, increasing the weight of the vehicle and increasing vehicle fuel consumption.

[0005] However, if the steel rim is designed to be too thin for the sake of lightness, the strength of the steel wheel will not be able to meet the requirements of the entire vehicle.

[0006] The existing technology generally increases the overall structural strength of the steel wheel by adding reinforcing ribs and reinforcing members, but the reinforcement of the wheel bolt connection on the steel wheel is insufficient. Therefore, it is not possible to achieve lightweight steel wheels while ensuring the strength of the steel wheel, preventing the wheel bolts from loosening, and not changing the shape of the steel wheel during actual use.

[0007] For example, the existing patent 202122944161.4 - A V-shaped lawn steel ring structure does not disclose the technical content for solving the above-mentioned technical problems.

[0008] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing steel ring structure. Summary of the invention

[0009] The purpose of the present invention is to provide a novel steel rim reinforcement structure for a spare tire wheel, which can reinforce the wheel bolt connection and increase the ball socket area.

[0010] In order to achieve the above object, the technical solution adopted by the present invention is:

[0011] A steel rim reinforcement structure for a spare tire wheel, comprising an annular pad; an assembly through hole is provided in the middle area of ​​the annular pad; a bolt penetration hole group is also provided on the annular pad; the bolt penetration hole group includes a plurality of penetration holes evenly spaced apart; the plurality of penetration holes are distributed in an annular shape on the annular pad; the penetration holes on the annular pad correspond one-to-one to the steel rim bolt holes on the steel rim of the spare tire wheel.

[0012] The penetration hole is a frustum-shaped hole; the inner wall of the penetration hole fits with the spherical surface of the wheel bolt.

[0013] The minimum hole diameter of the penetration hole is equal to the maximum hole diameter of the steel ring bolt hole.

[0014] The annular pad is provided with a sleeve sink groove; the sleeve sink groove is coaxially arranged with the penetration hole, and each penetration hole corresponds to a sleeve sink groove.

[0015] A spare tire wheel comprises a steel rim; the steel rim comprises a steel rim body, the steel rim body is provided with a plurality of steel rim bolt holes; the steel rim body is provided with the steel rim reinforcement structure for the spare tire wheel; the through holes on the annular gasket in the steel rim reinforcement structure for the spare tire wheel correspond one-to-one with the steel rim bolt holes on the steel rim.

[0016] The annular gasket is connected to the steel ring body by welding.

[0017] The annular gasket is made of the same material as the steel ring body.

[0018] The through-hole forms a pad ball socket on the annular pad, and the steel ring bolt hole forms a steel ring ball socket on the steel ring body; the pad ball socket is connected to the steel ring ball socket.

[0019] A reinforcement protrusion is arranged around the steel ring bolt hole of the steel ring body; and the annular pad is sleeved on the reinforcement protrusion by sleeve-arranging a sink groove.

[0020] After the annular gasket is welded on the steel ring body, a gasket ball socket and a steel ring ball socket are processed on the annular gasket and the steel ring body.

[0021] The advantages of the present invention are:

[0022] The invention discloses a steel rim reinforcement structure for a spare tire wheel and a spare tire wheel having the steel rim reinforcement structure.

[0023] The present invention ensures the structural strength of the wheel bolt installation position on the steel rim by setting the steel rim reinforcement structure. At the same time, by setting the annular gasket, the spherical surface of the wheel bolt on the spare tire wheel is in contact and pressed with the gasket ball socket and the steel rim ball socket, breaking through the limitation of the steel rim steel plate thickness and increasing the ball socket area of ​​the steel rim. Compared with the traditional steel rim, the contact area of ​​the ball socket is increased by 245%, which greatly increases the contact area between the wheel bolt and the ball socket on the steel rim, makes the force on the ball socket on the steel rim more uniform, and improves the service life of the steel rim. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0025] Figure 1It is a schematic diagram of the structure of the present invention.

[0026] Figure 2 It is an exploded view of the present invention.

[0027] Figure 3 It is a cross-sectional view of the steel ring bolt hole on the steel ring of the present invention.

[0028] Figure 4 It is a partial cross-sectional view of the steel ring and the annular gasket after being connected according to the present invention. Figure 5 It is a side view of the wheel bolt in the present invention.

[0029] The marks in the above figure are:

[0030] 1. Steel rim, 11. Steel rim bolt hole, 2. Ring gasket, 21. Assembly through hole, 33. Through hole; 3. Wheel bolt, 31. Spherical surface. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0032] A steel rim reinforcement structure for a spare tire wheel comprises an annular pad 2; an assembly through hole 21 is provided in the middle region of the annular pad 2; a bolt penetration hole group is also provided on the annular pad 2; the bolt penetration hole group comprises a plurality of penetration holes 22 evenly distributed at intervals; the plurality of penetration holes 22 are distributed in an annular shape on the annular pad 2; the penetration holes 22 on the annular pad 2 correspond one to one with the steel rim bolt holes 11 on the steel rim 1 of the spare tire wheel; the present invention has a good effect through the setting of the steel rim reinforcement structure. The structural strength of the installation location of the wheel bolt 3 on the steel rim 1 is ensured. At the same time, through the provision of the annular gasket 2, the spherical surface 31 of the wheel bolt 3 on the spare tire wheel is in contact and pressed with the gasket ball socket 211 and the steel rim ball socket 111, breaking through the limitation of the thickness of the steel plate of the steel rim and increasing the ball socket area of ​​the steel rim 1; compared with the traditional steel rim 1, the contact area of ​​the ball socket is increased by 245%, which greatly increases the contact area between the wheel bolt 3 and the ball socket on the steel rim 1, and the force on the ball socket on the steel rim 1 is more evenly applied, thereby improving the service life of the steel rim 1.

[0033] The steel rim reinforcement structure for the spare tire wheel disclosed in the present invention is mainly suitable for the steel rim 1 of the spare tire vehicle, and is mainly installed in the connection area of ​​the steel rim 1 bolts on the steel rim 1 body. The annular pad 2 disclosed in the present invention mainly presents an annular plate structure, which is attached to the side of the steel rim 1 body during subsequent use. The annular pad 2 acts as a reinforcement plate to ensure the structural strength of the wheel bolt 3 area on the steel rim 1.

[0034] At the same time, a through hole 22 is provided on the annular pad 2; the through hole 22 forms a pad ball socket 211 on the annular pad 2; the setting of the pad ball socket 211 is equivalent to increasing the contact area with the spherical surface 31 of the vehicle bolt, thereby greatly increasing the contact area between the wheel bolt 3 and the ball socket on the steel rim 1, and the force on the ball socket on the steel rim 1 is more uniform, thereby improving the life of the steel rim 1.

[0035] Furthermore, in the present invention, the penetration hole 22 is a frustum-shaped hole; the inner wall of the penetration hole 22 fits with the spherical surface 31 on the wheel bolt 3; the frustum-shaped hole of the present invention forms a pad ball socket 211; it is equivalent to increasing the contact area with the spherical surface 31 of the vehicle bolt, thereby greatly increasing the contact area between the wheel bolt 3 and the ball socket on the steel ring 1, the force on the ball socket on the steel ring 1 is more uniform, and the life of the steel ring 1 is improved.

[0036] Furthermore, in the present invention, the minimum hole diameter of the penetration hole 22 is equal to the maximum hole diameter of the steel rim bolt hole 11; such a setting ensures the alignment of the penetration hole 22 and the steel rim bolt hole 11, and facilitates the subsequent penetration of the wheel bolt 3.

[0037] Furthermore, in the present invention, a sleeve sink groove 23 is provided on the annular pad 2; the sleeve sink groove 23 is coaxially arranged with the through hole 22, and each through hole 22 corresponds to a sleeve sink groove; the present invention forms a sink groove structure on the annular pad 2 through the setting of the sleeve sink groove 23. When used subsequently, the sleeve sink groove 23 can be sleeved on the corresponding reinforcement protrusion 12 on the steel ring 1 body, so as to facilitate the mutual positioning of the annular pad 2 and the steel ring 1 body.

[0038] A spare tire wheel comprises a steel rim 1; the steel rim 1 comprises a steel rim 1 body, and a plurality of steel rim bolt holes 11 are arranged on the steel rim 1 body; the steel rim 1 body is provided with the steel rim reinforcement structure for the spare tire wheel; the penetration holes 22 on the annular pad 2 in the steel rim reinforcement structure for the spare tire wheel correspond one to one with the steel rim bolt holes 11 on the steel rim 1; the steel rim 1 of the present invention is the main structure of the spare tire vehicle, and the steel rim reinforcement structure has one function of increasing the structural strength of the middle area of ​​the steel rim 1 body, and another function of greatly increasing the contact area between the wheel bolt 3 and the ball socket on the steel rim 1, so that the force on the ball socket on the steel rim 1 is more uniform, thereby improving the service life of the steel rim 1.

[0039] Furthermore, in the present invention, the annular gasket 2 is connected to the steel ring 1 body by welding; such a configuration facilitates the connection and fixation between the annular gasket 2 and the steel ring 1 body.

[0040] Furthermore, the annular pad 2 described in the present invention is made of the same material as the main body of the steel ring 1; the material of the annular pad 2 of the present invention is steel, which is the same as the main body material of the steel ring 1, and can ensure the strength, corrosion resistance and overall performance of the welded joint after welding.

[0041] When welding different metals, the main factors to be considered include the physical and chemical properties of the metals, the applicability of the welding method, and the heat input control during the welding process; the differences in thermal expansion coefficients and electrical conductivity of different metals may cause stress in the welded joint during the cooling process, which in turn may lead to cracks or deformation; therefore, the annular pad 2 and the steel ring 1 body material of the present invention are kept consistent to ensure the overall performance of the steel ring 1.

[0042] Furthermore, in the present invention, the through hole 22 forms a gasket ball socket 211 on the annular gasket 2, and the steel ring bolt hole 11 forms a steel ring ball socket 111 on the steel ring 1 body; the gasket ball socket 211 is connected to the steel ring ball socket 111; the present invention uses the gasket ball socket 211 and the steel ring ball socket 111 in coordination, so that the spherical surface 31 of the wheel bolt 3 on the spare tire wheel is in contact and pressed with the gasket ball socket 211 and the steel ring ball socket 111, breaking through the limitation of the thickness of the steel ring steel plate and increasing the ball socket area of ​​the steel ring 1; compared with the traditional steel ring 1, the contact area of ​​the ball socket is increased by 245%, which greatly increases the contact area between the wheel bolt 3 and the ball socket on the steel ring 1, and the force on the ball socket on the steel ring 1 is more uniform, thereby improving the life of the steel ring 1.

[0043] Furthermore, in the present invention, a reinforcing protrusion 12 is provided around the steel ring bolt hole 11 of the steel ring 1 body; the annular pad 2 is sleeved on the reinforcing protrusion 12 by means of a sleeve recessed groove 23; one function of the reinforcing protrusion 12 of the present invention is to ensure the structural strength of the steel ring bolt hole 11, and at the same time, the reinforcing protrusion 12 also plays a positioning role, which is convenient for cooperating with the sleeve recessed groove 23; the installation positioning of the annular pad 2 on the steel ring 1 body is realized; and the installation positioning of the annular pad 2 before welding is ensured.

[0044] Furthermore, after the annular pad 2 described in the present invention is welded on the steel ring 1 body, the pad ball socket 211 and the steel ring ball socket 111 are processed on the annular pad 2 and the steel ring 1 body; this operation method can ensure the coaxiality of the pad ball socket 211 and the steel ring ball socket 111.

[0045] specific:

[0046] The present invention discloses a steel rim reinforcement structure for a spare tire wheel. The steel rim reinforcement structure disclosed in the present invention locally thickens the central bolt hole structure of the steel rim 1, which can not only increase the middle structural strength of the steel rim 1, but also increase the contact area with the vehicle bolt spherical surface 31 through the setting of the pad ball socket 211, thereby greatly increasing the contact area between the wheel bolt 3 and the ball socket on the steel rim 1, making the force on the ball socket on the steel rim 1 more uniform, thereby improving the service life of the steel rim 1.

[0047] In the present invention, the main body of the wheel rim 1 disclosed in the present invention is divided into two parts, namely the annular pad 2 and the rim 1 body.

[0048] In this solution, the through holes 22 arranged on the annular gasket 2 are aligned with the steel ring bolt holes 11 on the steel ring 1 and welded together. The annular gasket 2 and the steel ring 1 body are welded together to ensure strength. At the same time, through the setting of the gasket ball socket 211, it is equivalent to increasing the area of ​​the overall ball socket on the steel ring 1, and increasing the contact area between the ball socket on the steel ring 1 and the spherical surface 31 of the wheel bolt; it not only ensures the lightweight of the steel ring 1, but also takes into account the anti-loosening of the bolts, saves the product development cost, and improves the safety and economy of the whole vehicle.

[0049] When there is no annular pad 2, the spare wheel steel rim 1 is pressed against the steel rim ball socket 111 through the spherical surface 31 of the wheel bolt 3. Due to the limitation of the thickness of the steel rim steel plate, the contact area of ​​the steel rim ball socket 111 cannot achieve the effect of the aluminum rim ball socket. The contact area between the spherical surface 31 of the wheel bolt 3 and the ball socket on the steel rim is too small, the static friction between the bolt and the steel rim ball socket 111 is reduced, the stress is more concentrated, and the steel rim ball socket 111 is at risk of damage. In addition, when the bolt is used in an actual vehicle, the whole vehicle shakes and the bolt is at risk of loosening and falling off.

[0050] At the same time, when traditional steel rims are produced, it is impossible to perform local thickening during production, because the bolt connection on the steel rim has an inflection point and the thickness changes suddenly, which easily forms stress concentration at the uneven thickness of the plate, affecting the actual performance. Therefore, the technical solution of thickening the local structure of the steel rim itself during production is not feasible.

[0051] Based on the above, it can be known that the size of the ball socket on the steel ring disclosed in the present invention is equivalent to the sum of the size of the steel ring ball socket 111 and the size of the pad ball socket 211.

[0052] The present invention adds an annular gasket 2 on the basis of the spare wheel steel rim 1. The spare wheel steel rim 1 is in contact and pressed with the steel rim ball socket 111 and the gasket ball socket 211 through the spherical surface 31 of the wheel bolt 3, breaking through the limitation of the thickness of the steel plate of the steel rim, so that the ball socket area of ​​the steel rim 1 reaches the ball socket area of ​​the aluminum rim; compared with the traditional steel rim 1, the contact area of ​​the ball socket is increased by 245%, which greatly increases the contact area between the wheel bolt 3 and the ball socket on the steel rim 1, the steel rim ball socket 111 is more evenly stressed, and the service life of the steel rim 1 is improved.

[0053] Compared with the traditional steel rim 1, the size of the ball socket on the steel rim 1 is completely dependent on the thickness of the steel plate. Of course, thicker steel plates can be used to produce the steel rim 1. If the steel rim 1 becomes thicker overall, the weight of the steel rim 1 will increase exponentially; the weight of the entire vehicle will increase, and the fuel consumption of the entire vehicle will increase, which goes against the original design intention.

[0054] Adding an annular pad 2 locally to the bolt hole 11 of the steel ring not only increases the ball socket area on the steel ring 1, but also makes the steel ring 1 lighter, reduces the weight of the whole vehicle, reduces the fuel consumption of the whole vehicle, and saves energy and reduces emissions.

[0055] The annular pad 2 and the steel ring 1 body are fixed by welding. The lightweight structure of the annular pad 2 itself makes the overall weight of the steel ring 1 lighter, while the performance reaches that of an aluminum ring. The design of the steel ring ball socket 111 is more flexible than that of an aluminum ring. The contact area of ​​the steel ring ball socket 111 is changed by changing the thickness of the annular pad 2. Since the overall area of ​​the annular pad 2 itself is very small, the increase or decrease in the thickness of the annular pad 2 is negligible to the overall weight of the steel ring 1.

[0056] The material of the annular pad 2 is steel, which is the same as the material of the steel ring 1. After welding, the strength, corrosion resistance and overall performance of the welded joint can be ensured. When welding different metals, the main factors to be considered include the physical and chemical properties of the metals, the applicability of the welding method, and the heat input control during the welding process.

[0057] The difference in thermal expansion coefficient and electrical conductivity of different metals may cause stress in the welded joint during cooling, which may lead to cracks or deformation. Therefore, the annular pad 21 and the steel ring 1 body are made of the same material to ensure the overall performance of the steel ring 1.

[0058] The ball socket of the annular pad 2 and the steel ring 1 body should be processed after the annular pad 2 and the steel ring 1 body are welded together and the welding temperature is fully cooled down, and then the annular pad 2 and the steel ring 1 body are machined as a whole; the required ball socket is milled out with a spherical cutter.

[0059] To ensure the tolerance of the ball socket, compared with machining the ball socket first and then assembling and welding, the ball socket hole is not centered due to welding, which will affect the overall performance of the steel ring 1.

[0060] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A steel rim reinforcement structure for a spare tire wheel, characterized in that: It includes an annular pad; an assembly through hole is provided in the middle area of ​​the annular pad; a bolt penetration hole group is also provided on the annular pad; the bolt penetration hole group includes a plurality of penetration holes evenly distributed at intervals; the plurality of penetration holes are distributed in an annular shape on the annular pad; the penetration holes on the annular pad correspond one-to-one to the steel rim bolt holes on the steel rim of the spare tire wheel.

2. A steel rim reinforcement structure for a spare tire wheel according to claim 1, characterized in that: The penetration hole is a frustum-shaped hole; the inner wall of the penetration hole fits with the spherical surface of the wheel bolt.

3. A steel rim reinforcement structure for a spare tire wheel according to any one of claims 1-2, characterized in that: The minimum hole diameter of the penetration hole is equal to the maximum hole diameter of the steel ring bolt hole.

4. A spare tire wheel steel rim reinforcement structure according to any one of claims 1-2, characterized in that: The annular pad is provided with a sleeve sink groove; the sleeve sink groove is coaxially arranged with the penetration hole, and each penetration hole corresponds to a sleeve sink groove.

5. A spare wheel, characterized in that: It includes a steel rim; the steel rim includes a steel rim body, and the steel rim body is provided with a plurality of steel rim bolt holes; the steel rim body is provided with a steel rim reinforcement structure for a spare tire wheel as described in any one of claims 1 to 4; the through holes on the annular pad in the steel rim reinforcement structure for the spare tire wheel correspond one-to-one with the steel rim bolt holes on the steel rim.

6. A spare wheel according to claim 5, characterized in that: The annular gasket is connected to the steel ring body by welding.

7. The spare wheel according to claim 5, characterized in that: The annular gasket is made of the same material as the steel ring body.

8. The spare wheel according to claim 5, characterized in that: The through-hole forms a pad ball socket on the annular pad, and the steel ring bolt hole forms a steel ring ball socket on the steel ring body; the pad ball socket is connected to the steel ring ball socket.

9. The spare wheel according to claim 5, characterized in that: A reinforcement protrusion is arranged around the steel ring bolt hole of the steel ring body; and the annular pad is sleeved on the reinforcement protrusion by sleeve-arranging a sink groove.

10. The spare wheel according to claim 8, characterized in that: After the annular gasket is welded on the steel ring body, a gasket ball socket and a steel ring ball socket are processed on the annular gasket and the steel ring body.

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