Weld-free steel automotive wheel hub

Abstract

This utility model discloses a weld-free steel automobile wheel hub, including a rim, spokes, and a center disc. The spokes and center disc are integrally formed. The rim is spun and formed with a first annular step and a second annular step on both sides. The edge of the rim has a flange. It also includes: a reinforcing cylinder, which is a cylindrical structure with an outwardly extending fixing ring at one end. The fixing ring is detachably abutted against and fixed to the first annular step; a support ring, which is an annular structure with a receiving notch. It abuts against and is detachably fixed to the second annular step and the other end of the reinforcing cylinder; and a pressure ring, which is an annular structure and presses against and is detachably fixed to the flange and the outer end of the support ring. The outer end of the spoke is located within the receiving notch and is limited. In this design, the reinforcing cylinder, after being fixedly connected at one end, is located inside the rim and not only provides strong support for the rim but also provides an installation position for the support ring. The support ring, the second annular step, and the reinforcing cylinder are connected as a whole, and the spokes are installed through the accommodating notch. After installation, they are tightened and fixed by the pressure ring fixed to the flange and the support ring. This not only realizes the detachable connection of various parts of the wheel hub, but also allows the mounting holes to be distributed through the multi-position installation structure, avoiding excessive concentration of mounting holes that would lead to low strength in some parts of the wheel hub, thus ensuring the overall strength of the wheel hub.

Description

Technical Field

[0001] This utility model relates to wheel hubs, and more particularly to weld-free steel automobile wheel hubs. Background Technology

[0002] The wheel hub is one of the core components of a vehicle's wheel system. It connects the tires to the axle and performs multiple functions, including supporting the vehicle body, transmitting power, and damping vibrations.

[0003] A wheel hub consists of three parts: the rim, the spokes, and the center disc. Currently, there are three manufacturing routes: integral casting, integral forging, and partial manufacturing followed by detachable connection. Although casting and forging can be formed in one step, the product is prone to porosity, and the complexity of the equipment is greatly increased. In addition, if cracks occur, the entire wheel hub will be scrapped, and it is difficult to repair the local parts during use. In contrast, the structure of partial manufacturing and then connection and installation can not only adapt to complex structures and is more flexible, but also allows for partial replacement when damaged.

[0004] Patent application number 2017212265549 discloses a hub structure with detachable spokes, including a rim. One side of the rim is connected to a bearing mounting seat via multiple spokes. Inner and outer rings are respectively provided on the outer wall of the rim and the spokes on the same side, and an annular slide is formed between the inner and outer rings. The bottom of the end of the multiple spokes that contacts the rim is provided with a groove, the inner ring is placed in the groove, and the top part of the spoke is placed in the annular slide. This patent and most existing technologies directly fix the spokes to the flanged position of the rim edge, which results in excessive stress at that position. Therefore, a large number of fasteners are required for fixation. However, too many fasteners will increase the number of openings at the rim edge, which will further reduce the strength at that point and affect the structural strength of the entire hub. Utility Model Content

[0005] In view of the problems mentioned in the background art, the technical problem to be solved by this utility model is to provide a weld-free steel automobile wheel hub.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] The weld-free steel automobile wheel hub includes a rim, spokes, and a center disc. The spokes and center disc are integrally formed. The rim is spun and formed with a first annular step and a second annular step on both sides. The edge of the rim has a flange.

[0008] Also includes:

[0009] The reinforcing cylinder is a cylindrical structure with an outwardly extending fixing ring at one end. The fixing ring can be detached and fixed to the first annular step.

[0010] The support ring is a ring structure with a receiving notch, and it is abutted against and detachably fixed to the other end of the second annular step and the reinforcing cylinder.

[0011] The pressure ring is a ring structure that is pressed against and detachably fixed to the outer end of the flange and the support ring; wherein the outer end of the spoke is located in the receiving notch and is limited.

[0012] Preferably, the spokes include several spokes, each spoke including two symmetrical zigzag blocks and an arc-shaped body located at the ends of the two blocks. The outer end of the arc-shaped body abuts against the inner wall of the hub, and the left and right ends of the arc-shaped body abut against the two side walls of the receiving notch to form a limit.

[0013] Preferably, the space enclosed by the spokes has an installation gap, wherein the connection position between the support ring and the second annular step and the reinforcing cylinder is located at the installation gap.

[0014] Preferably, the reinforcing cylinder fits snugly against the inner wall of the wheel hub.

[0015] Preferably, after the reinforcing cylinder is installed, one end of it is flush with the second annular step; or after the reinforcing cylinder is installed, one end of it forms a first step structure with the second annular step, and one end of the support ring abuts against the first step structure.

[0016] Preferably, the support ring and the flange form a second step structure, and one side of the pressure ring is in contact with the second step structure.

[0017] Compared with the prior art, the present invention has the following advantages: In this application, the reinforcing cylinder, after being fixedly connected at one end, is located inside the rim and not only provides strong support for the rim, but also provides an installation position for the support ring. The support ring, the second annular step, and the reinforcing cylinder are connected as a whole, and the spokes are installed through the accommodating notch. After installation, they are pressed and fixed by the pressure ring fixed to the flange and the support ring. This not only realizes the detachable connection of each part of the hub, but also allows the mounting holes to be distributed through the multi-position installation structure, avoiding excessive concentration of mounting holes that would lead to low strength in some parts of the hub, thus helping to ensure the overall strength of the hub. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1-2 This is a perspective view of the present application;

[0020] Figure 3-4 This is an exploded view of this application;

[0021] In the diagram: 10, rim; 101, first annular step; 102, second annular step; 20, spoke; 30, center disc; 40, reinforcing cylinder; 401, fixing ring; 50, support ring; 501, receiving notch; 60, pressure ring. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0024] This embodiment mainly describes the title of weld-free steel automobile wheel hub, as follows:

[0025] like Figure 1-4 As shown, the weld-free steel automobile wheel hub includes a rim 10, spokes 20 and a center disc 30. The spokes 20 and the center disc 30 are integrally formed. The rim 10 is spun and formed with a first annular step 101 and a second annular step 102 on both sides. The edge of the rim 10 has a flange.

[0026] Also includes:

[0027] The reinforcing cylinder 40 is a cylindrical structure with an outwardly extending fixing ring 401 at one end. The fixing ring 401 can be detachably abutted against and fixed to the first annular step 101.

[0028] The support ring 50 is a ring structure and has a receiving notch 501. It abuts against and is detachably fixed to the other end of the second annular step 102 and the reinforcing cylinder 40.

[0029] The pressure ring 60 is an annular structure that presses against and is detachably fixed to the outer end of the flange and support ring 50; the outer end of the spoke 20 is located within the receiving notch 501 and is limited. In this design, the reinforcing cylinder 40, after being fixedly connected at one end, is located inside the rim 10, which not only provides strong support for the rim 10, but also provides an installation position for the support ring 50. The support ring 50 is connected to the second annular step 102 and the reinforcing cylinder 40 as a whole, and the spoke 20 is installed through the receiving notch 501. After installation, it is pressed and fixed by the pressure ring 60 fixed to the flange and support ring 50. This not only realizes the detachable connection of various parts of the hub, but also allows for the distributed setting of mounting holes through the multi-position installation structure, avoiding excessive concentration of mounting holes that would lead to low strength in some parts of the hub, thus helping to ensure the overall strength of the hub.

[0030] Preferably, the spokes 20 include several spokes, each spoke comprising two symmetrical, zigzag-shaped blocks and an arc-shaped body located at the ends of the two blocks. The outer end of the arc-shaped body abuts against the inner wall of the hub, and the left and right ends of the arc-shaped body respectively abut against the two side walls of the receiving notch 501 to form a limiting position. Preferably, the space enclosed by the spokes has an installation gap, wherein the connection position between the support ring 50 and the second annular step 102 and the reinforcing cylinder 40 is located at the installation gap. This design not only ensures the strength of the spokes but also forms an installation gap in its middle, which can be used to install fastening screws.

[0031] Preferably, the reinforcing cylinder 40 is fitted to the inner wall of the wheel hub. The fitted structure can provide secondary support for the wheel rim 10, which is generally formed by spinning, and the strength in the middle is often weakened after forming.

[0032] Preferably, after installation, one end of the reinforcing cylinder 40 is flush with the second annular step 102; or after installation, one end of the reinforcing cylinder 40 forms a first step structure with the second annular step 102, and one end of the support ring 50 abuts against the first step structure. If the step structure has a limiting effect in the radial direction, the strength will be better.

[0033] Preferably, the support ring 50 and the flange form a second stepped structure, and one side of the pressure ring 60 is in contact with the second stepped structure. The stepped structure has a limiting effect in the radial direction, resulting in better strength.

[0034] It should be noted that both the first annular step 101 and the second annular step 102 extend outwards. Therefore, the pressure ring 60 and the reinforcing cylinder 40 are fixed at the two locations with bolts and nuts, while the support ring 50 is fixed with screws. The pressure ring 60 and the support ring 50 are also fixed with screws.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A weld-free steel automobile wheel hub, comprising a rim, spokes, and a center disc, wherein the spokes and center disc are integrally formed, characterized in that, The rim is spun and formed with a first annular step and a second annular step on both sides, and the edge of the rim has a flange. Also includes: The reinforcing cylinder is a cylindrical structure with an outwardly extending fixing ring at one end. The fixing ring can be detached and fixed to the first annular step. The support ring is a ring structure with a receiving notch, and it is abutted against and detachably fixed to the other end of the second annular step and the reinforcing cylinder. The pressure ring is a ring structure that is pressed against and detachably fixed to the outer end of the flange and the support ring; wherein the outer end of the spoke is located in the receiving notch and is limited.

2. The weld-free steel automobile wheel hub according to claim 1, characterized in that, The spokes include several spokes, each spoke consisting of two symmetrical zigzag blocks and an arc-shaped body located at the ends of the two blocks. The outer end of the arc-shaped body abuts against the inner wall of the hub, and the left and right ends of the arc-shaped body abut against the two side walls of the receiving notch to form a limit.

3. The weld-free steel automobile wheel hub according to claim 2, characterized in that, The space enclosed by the spokes has an installation gap, in which the connection between the support ring and the second annular step and the reinforcing cylinder is located at the installation gap.

4. The weld-free steel automobile wheel hub according to claim 1, characterized in that, The reinforcing cylinder fits snugly against the inner wall of the wheel hub.

5. The weld-free steel automobile wheel hub according to claim 1, characterized in that, After the reinforcing cylinder is installed, one end of it is flush with the second annular step; or after the reinforcing cylinder is installed, one end of it forms a first step structure with the second annular step, and one end of the support ring abuts against the first step structure.

6. The weld-free steel automobile wheel hub according to claim 1, characterized in that, The support ring and the flange form a second step structure, and one side of the pressure ring is in contact with the second step structure.

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