Reverse disc brake hub body, reverse disc brake hub and two-wheeled vehicle

Abstract

The application provides a reverse disc brake hub body, a reverse disc brake hub and a two-wheeled vehicle. The reverse disc brake hub body comprises a rim made of iron material, spokes made of material different from the rim material, a combination part for combining the spokes and the rim, and a plurality of mounting columns. Since the reverse disc brake hub body has the plurality of mounting columns, the reverse disc brake hub body can be used to mount a reverse disc brake, forming a reverse disc brake hub with better braking performance. Since the rim is made of iron material and the spokes are made of other material, the reverse disc brake hub also has the advantages of a conventional composite hub: the rim has high strength and is not prone to deformation or cracking during use, which can better guarantee the driving safety of users and accordingly reduce the frequency of maintenance and repair; and the overall weight of the reverse disc brake hub is lighter and the appearance is more beautiful.

Description

Technical Field

[0001] This invention belongs to the field of two-wheeled vehicle hub technology, specifically relating to a disc brake hub body, a disc brake hub, and a two-wheeled vehicle. Background Technology

[0002] Currently, disc brake hubs and corresponding brakes are commonly used in electric vehicles and motorcycles. A disc brake hub consists of a hub body and a disc brake disc mounted on one side of the hub body. Multiple mounting posts with threaded holes are located in the center of the spokes, and the disc brake disc is fixed to these mounting posts with screws. The corresponding brake system includes a disc brake caliper and a hydraulic drive mechanism. When the user applies the brakes, the hydraulic drive mechanism drives the disc brake caliper to clamp the disc brake disc, thus applying the brakes. Compared to drum brakes, this type of brake system offers advantages such as fast response, good braking linearity, and ease of control. However, during braking, due to the short lever arm, significant shear forces are generated at each mounting post. Therefore, under heavy loads, downhill braking, or emergency braking, the mounting posts may crack or even break due to these large shear forces, affecting braking performance or even causing brake failure and posing a safety hazard.

[0003] To address the aforementioned issues, reverse disc brake hubs and corresponding brake systems have emerged in recent years. A reverse disc brake hub comprises a hub body and a reverse disc brake disc mounted on one side of the hub body. Each spoke end has a mounting post with threaded holes. The reverse disc brake disc is fixed to multiple mounting posts by screws, and the disc has a larger diameter. The corresponding brake system includes a disc brake caliper and a hydraulic drive mechanism. During braking, compared to a disc brake hub, a reverse disc brake hub has a longer lever arm, resulting in relatively smaller shear forces at each mounting post location. This makes it better suited for braking under heavy loads, downhill conditions, or emergency braking.

[0004] However, existing anti-disc brake rims are typically made of a single piece of material such as aluminum alloy. Due to the limited strength of aluminum alloy, the rim may deform or crack under heavy loads. Furthermore, during the use of electric vehicles or motorcycles, wheels inevitably experience impacts, which can also deform the rim in severe cases. Therefore, existing anti-disc brake rims suffer from insufficient strength, posing a safety hazard.

[0005] To address the aforementioned issues, the inventors considered designing a stronger anti-disc brake hub. Existing technologies include composite hubs, such as iron-aluminum composite hubs, where the rim is made of iron and the spokes are made of aluminum alloy. Such hubs offer sufficient strength, are relatively lightweight, and have an attractive appearance. The challenge lies in achieving the basic structure of an anti-disc brake hub while maintaining the advantages of composite hubs. Summary of the Invention

[0006] This invention is made to solve the above-mentioned problems, and its purpose is to provide a composite anti-disc brake hub with higher strength, lighter weight, better appearance and easier manufacturing. The technical solution adopted by this invention is as follows:

[0007] Option 1

[0008] The present invention provides a reverse disc brake hub body, characterized in that it includes: a rim made of iron material; spokes made of a different material from the rim; a connecting part for connecting the spokes to the rim; and a plurality of mounting posts for mounting the reverse disc brake disc.

[0009] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein a plurality of mounting seats are evenly arranged on the rim, the mounting seats are in the shape of a notched column, and their length direction is the axial direction of the rim.

[0010] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the rim has a groove bottom, a tire bead seat and a rim flange, and the mounting seat includes: a mating part that mates with the groove bottom, the tire bead seat and the rim flange; and a mounting part that is integrally formed with the mating part and has a mounting hole that matches the fixing hole of the anti-disc brake disc, wherein the center line of the mounting hole is oriented along the axial direction of the rim.

[0011] The anti-disc brake wheel hub body provided by the present invention may also have the following technical features, wherein the mating part has a mating surface, the mating surface including: a first abutting surface that abuts against the bottom of the groove; and a second abutting surface that abuts against the tire bead seat and the wheel rim.

[0012] The anti-disc brake hub body provided by the present invention may also have the following technical features, further comprising: a welded portion disposed between the mounting base and the rim, wherein the mating surface has: a first edge that contacts the bottom of the groove in the circumferential direction of the rim; a second edge that contacts the outer end of the rim flange in the circumferential direction of the rim; a third edge that connects one end of the first edge and one end of the second edge; and a fourth edge that connects the other end of the first edge and the other end of the second edge, wherein the welded portion is disposed on at least one of the first edge, the second edge, the third edge, and the fourth edge.

[0013] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the welded portion is disposed on the first edge, the second edge, the third edge and the fourth edge.

[0014] The anti-disc brake wheel hub body provided by the present invention may also have the following technical features: an additional welded portion disposed between the mounting seat and the wheel rim, wherein the second abutting surface forms a step at the junction of the wheel rim and the tire bead seat, and the additional welded portion is disposed between the step and the junction.

[0015] The anti-disc brake wheel hub body provided by the present invention may also have the following technical features, including: an additional welded portion disposed between the mounting seat and the wheel rim, wherein the first abutment surface and the second abutment surface are a ridge of the mounting seat, and the additional welded portion is disposed between the ridge and the junction of the tire bead seat and the bottom of the groove.

[0016] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the mounting base further has: a limiting portion, integrally formed with the mounting portion, for limiting the anti-disc brake disc in the radial direction of the anti-disc brake hub body.

[0017] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the spokes have a plurality of spokes, and the plurality of mounting seats are respectively disposed on the plurality of spokes and distributed along the circumference of the anti-disc brake hub body.

[0018] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the mounting base has: an extension portion integrally formed with the spokes, extending from the outer end of the spokes and resting on the rim; and a mounting portion integrally formed with the extension portion, having a mounting hole that matches the fixing hole of the anti-disc brake disc, wherein the center line direction of the mounting hole is the axial direction of the rim.

[0019] The anti-disc brake wheel hub body provided by the present invention may also have the following technical features, wherein the wheel rim has a groove bottom, a tire bead seat and a wheel flange, and the extended portion cooperates with the groove bottom, the tire bead seat and the wheel flange.

[0020] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the mounting hole is a threaded hole, and the mounting part is pre-embedded with a threaded hole component of iron material, thereby forming the threaded hole.

[0021] The anti-disc brake wheel hub body provided by the present invention may also have the following technical features, wherein the joint includes a plurality of connectors, which are respectively disposed at the outer ends of a plurality of spokes of the wheel spoke, at least a portion of the connectors are pre-embedded in the outer ends of the corresponding spokes, and the exposed portion of the connectors is welded to the wheel rim.

[0022] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the connecting part is an annular part, welded to the middle of the inner ring of the rim, and at least part of the connecting part is pre-embedded in the outer ends of a plurality of spokes of the wheel spoke.

[0023] The anti-disc brake hub body provided by the present invention may also have the following technical features: the connecting part is an annular part, welded to the middle of the inner ring of the rim; the spokes have a plurality of spokes; at least a portion of the connecting part is pre-embedded in the outer ends of the plurality of spokes; a plurality of mounting seats are evenly arranged on the connecting part; the mounting seats are in the shape of a notched column, and their length direction is the axial direction of the rim.

[0024] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the rim has a groove bottom, a tire bead seat and a wheel flange, and the mounting seat includes: a mating part that mates with the mating part, the groove bottom, the tire bead seat and the wheel flange; and a mounting part that is integrally formed with the mating part and has a mounting hole that matches the fixing hole of the anti-disc brake disc, wherein the center line direction of the mounting hole is the axial direction of the rim.

[0025] The anti-disc brake wheel hub body provided by the present invention may also have the following technical features, wherein the mating part has a mating surface, the mating surface having: a first abutting surface that abuts against the joint portion; and a second abutting surface that abuts against the groove bottom, the tire bead seat and the wheel rim.

[0026] The anti-disc brake hub body provided by the present invention may also have the following technical features, wherein the mounting base further has: a limiting portion, integrally formed with the mounting portion, for limiting the anti-disc brake disc in the radial direction of the anti-disc brake hub body.

[0027] The anti-disc brake hub body provided by the present invention may also have the following technical feature: the number of mounting seats is 3 to 6.

[0028] The present invention provides a reverse disc brake hub, characterized in that it includes: the aforementioned reverse disc brake hub body; and a reverse disc brake disc, which is installed on one side of the reverse disc brake hub body for braking.

[0029] The anti-disc brake hub provided by the present invention may also have the following technical features: it further includes multiple fasteners, wherein the edge of the anti-disc brake disc has multiple fixing holes, and the fasteners are used to cooperate one-to-one with the multiple fixing holes and multiple mounting seats of the anti-disc brake disc, thereby installing the anti-disc brake disc on the anti-disc brake hub body.

[0030] The present invention provides a two-wheeled vehicle, characterized in that it includes: the aforementioned anti-disc brake hub; and a brake for cooperating with the anti-disc brake hub to perform braking.

[0031] Invention Function and Effect

[0032] According to the present invention, the anti-disc brake hub body, the anti-disc brake hub, and the two-wheeled vehicle, the anti-disc brake hub body includes a rim made of iron, spokes made of a different material than the rim, a joint for joining the spokes to the rim, and multiple mounting posts. Because it has multiple mounting posts, the anti-disc brake hub body can be used to mount anti-disc brake discs, forming an anti-disc brake hub with better braking performance. Furthermore, since the rim is made of iron and the spokes are made of other materials, the anti-disc brake hub also has the advantages of traditional composite hubs: the rim has high strength and is less prone to deformation or cracking during use, thus better ensuring the user's driving safety and reducing the frequency of maintenance; the overall weight of the anti-disc brake hub is lighter, and its appearance is more aesthetically pleasing. Attached Figure Description

[0033] Figure 1 This is a side view of the main body of the anti-disc brake wheel hub in Embodiment 1 of the present invention;

[0034] Figure 2 This is a perspective view of the anti-disc brake disc in Embodiment 1 of the present invention;

[0035] Figure 3 This is a cross-sectional view of the wheel rim in Embodiment 1 of the present invention;

[0036] Figure 4 This is a perspective view of the connector in Embodiment 1 of the present invention;

[0037] Figure 5 yes Figure 1 Enlarged view of the area inside circle A;

[0038] Figure 6 This is a perspective view of the anti-disc brake wheel hub in Embodiment 2 of the present invention;

[0039] Figure 7 These are perspective views of the anti-disc brake wheel hub from different angles in Embodiment 2 of the present invention;

[0040] Figure 8 This is a cross-sectional view of the anti-disc brake wheel hub in Embodiment 2 of the present invention;

[0041] Figure 9 This is a perspective view of the main body of the anti-disc brake wheel hub in Embodiment 2 of the present invention;

[0042] Figure 10 This is a perspective view of the mounting column in Embodiment 2 of the present invention;

[0043] Figure 11These are perspective views of the mounting column at different angles in Embodiment 2 of the present invention;

[0044] Figure 12 yes Figure 8 Enlarged view of the area inside circle C;

[0045] Figure 13 This is a side view of the mounting column in Embodiment 2 of the present invention.

[0046] Figure label:

[0047] 100; 110; rim; 111; rim groove; 1112; rim extension; 1113; 112; 112; 1121; 1122; 1123; 1124; 1125; 113; 113; 1131; 1131; 1131; 1131a; 1131b; 1131c; 1132; 1132a; 1132a; 1133a; 1134a; 1135a; 1131b; 1131c; 1132a; 1133a;

[0048] Mounting base 114; mounting hole 114a; mounting part 1141; mating part 1142; notch 1142a; step 1142b; mating surface 421; first abutting surface 4211; second abutting surface 4212; first edge 421a; second edge 421b; third edge 421c; fourth edge 421d; dividing line 421e; limiting part 1143; first end face 1144; second end face 1145; mounting base 115; extension part 1151; mounting part 1152; reinforcing rib part 1153; reverse disc brake disc 120; heat dissipation groove 120a; brake part 121; heat dissipation hole 121a; mounting disc part 122; protrusion 1221; fixing hole 1221a; fastener 130. Detailed Implementation

[0049] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following describes the anti-disc brake hub body, anti-disc brake hub and two-wheeled vehicle of the present invention in detail with reference to embodiments and accompanying drawings.

[0050] <Example 1>

[0051] This embodiment provides a two-wheeled vehicle, wherein the front wheel of the two-wheeled vehicle adopts an anti-disc brake hub, and the two-wheeled vehicle has a brake that is used in conjunction with the anti-disc brake hub. The two-wheeled vehicle can be an electric vehicle or a motorcycle.

[0052] Figure 1 This is a side view of the main body of the anti-disc brake wheel hub in this embodiment. Figure 2 This is a perspective view of the anti-disc brake disc in this embodiment.

[0053] like Figure 1 and Figure 2 As shown, the anti-disc brake hub 100 includes an anti-disc brake hub body 110, an anti-disc brake disc 120 mounted on one side of the anti-disc brake hub body 110, and a plurality of fasteners (not shown in the figure) for mounting the anti-disc brake disc 120.

[0054] The anti-disc brake hub body 110 includes a rim 111, spokes 112, a joint, and multiple mounting seats 115. In this embodiment, the joint includes multiple connectors 113.

[0055] Figure 3 This is a cross-sectional view of the wheel rim in this embodiment.

[0056] like Figure 3 As shown, the rim 111 is made of iron and has a groove bottom 1111, a bead seat 1112 and a rim 1113.

[0057] The bottom of the groove 1111 is a groove with a cross-section roughly trapezoidal and a certain depth, which facilitates the installation and removal of tires.

[0058] Two bead seats 1112 are respectively connected to both sides of the groove bottom 1111, and a first bend is formed between the bead seats 1112 and the groove bottom 1111. The two bead seats 1112 are in contact with the tire bead and are used to support the tire in the radial direction.

[0059] Two flanges 1113 are respectively connected to both sides of the two bead seats 1112, and a second bend is formed between the flanges 1113 and the corresponding bead seats 1112. The two flanges 1113 are respectively clamped on both sides of the tire bead to support the tire and maintain the axial direction of the tire.

[0060] The spokes 112 are made of aluminum alloy and are formed by die casting of molten aluminum alloy. The spokes 112 include an integrally formed spoke body 1121 and multiple spokes 1122.

[0061] The spoke body 1121 is roughly in the shape of a circular plate, and multiple spokes 1122 extend radially outward from the edge of the spoke body 1121, with each spoke 1122 being a long strip plate.

[0062] Because iron and aluminum alloy have different melting points, the iron rim 111 and the aluminum alloy spokes 112 cannot be effectively welded. Therefore, a connector 113 is provided to connect the two. The connector 113 is made of a material that can be effectively welded to the iron rim 111. In this embodiment, the connector 113 is also made of iron.

[0063] Figure 4 This is a perspective view of the connector in this embodiment.

[0064] like Figure 4 As shown, the connector 113 is a sheet-like part with a question mark-shaped cross-section, having an integrally formed spoke joint portion 1131 and a welding portion 1132.

[0065] The spoke joint 1131 is plate-shaped, with two through holes 1131a in the middle, multiple square notches 1131b at one end in the width direction, a welding part 1132 at the other end in the width direction, and semi-circular notches 1131c at both ends in the length direction.

[0066] The welding portion 1132 has a U-shaped cross-section, with one end of the U-shape connected to one end of the spoke joint portion 1131 in the width direction. The opening direction of the U-shape opening 1132a is approximately perpendicular to the surface direction of the spoke joint portion 1131. The welding portion 1132 has a certain curvature along its length direction, which matches the curvature of the bottom of the groove 1111 of the rim 111.

[0067] The spoke joining portion 1131 is used to join with the outer end of the spoke 1122 of the spoke 112 during the manufacture of the spoke 112, and the welding portion 1132 is used to weld to the rim 111. Specifically, when manufacturing the spokes 112, multiple connectors 113 are placed in a die-casting machine into a mold for die-casting the spokes. Then, the mold is closed and molten aluminum alloy is injected for die-casting, thereby forming spokes 112 with connectors 113 embedded at the ends of each spoke 1122. The spoke connecting piece 1131 of the connector 113 is wrapped around the end of the spoke 1122, forming a firm connection with the spoke 113. The welding part 1132 is exposed. The spokes 112 with multiple connectors 113 embedded are then pressed into the inner ring of the rim 111, and each connector 113 is welded to the inner ring of the rim 111. Welding is also performed at the opening 1132a of the welding part 1132, thereby joining the rim 111 and the spokes 112.

[0068] Alternatively, the connector 113 can be welded to the middle of the inner ring of the rim 111 first, and then the rim 111 with the connector 113 welded on can be placed into a mold, and the spokes 112 can be cast in the inner ring of the rim 111. The outer ends of each spoke 1122 of the spokes 112 wrap around each connector 113.

[0069] When the spokes 112 are cast, the molten aluminum also flows through multiple notches and through holes on the spoke joint 1131 and cools and forms at these locations, so that the outer end of the spokes 1122 forms a complex covering and gripping structure with the connector 113. The joint between the two is very strong and can withstand great tensile and compressive forces.

[0070] In this embodiment, the spokes 112 are made of aluminum alloy. In alternative embodiments, the spokes 112 can also be made of other lightweight materials with sufficient strength, such as industrial plastics, carbon fiber composites, etc.

[0071] Figure 5 yes Figure 1 A magnified view of the area inside circle A.

[0072] like Figure 5 As shown, the mounting base 115 is integrally formed with the spokes 112 and extends from the outer ends of each spoke 1122. The mounting base 115 includes an extension portion 1151, a mounting portion 1152, and a plurality of reinforcing rib portions 1153.

[0073] The extension portion 1151 is a curved plate shape that matches the shape of the inner ring of the rim 111. The extension portion 1151 extends from the outer end of the spoke 1122, rests on the rim 111, and is approximately in contact with the groove bottom 1111, the bead seat 1112, and the rim 1113 of the rim 111.

[0074] Mounting portion 1152 is formed on the extended outer end of extension portion 1151. Mounting portion 1152 is tapered, and the diameter of its outer end is smaller than the diameter of one end connected to extension portion 1151. The extension direction of mounting portion 1152 is approximately parallel to the axial direction of disc brake hub body 110, and mounting hole 1152a is provided on the outer end of mounting portion 1152. In this embodiment, mounting hole 1152 is a threaded hole, and its centerline direction is parallel to the axial direction of rim 111. When casting spokes 112 and mounting base 115, iron threaded hole parts are pre-placed in the mold cavity corresponding to each mounting base 115 in the mold cavity of the corresponding mold. After casting, the aluminum alloy mounting base 115 portion is encased with iron threaded hole parts, forming the aforementioned mounting hole 1152a. In this way, mounting hole 1152a has sufficient connection strength.

[0075] Multiple reinforcing ribs 1153 are respectively connected between one side of the mounting portion 1152 and the extension portion 1151 to enhance the structural strength of the mounting base 115. In this embodiment, three reinforcing ribs 1153 are provided, two of which are generally columnar and are formed between the radial sides of the mounting portion 1152 and the outer end of the extension portion 1151, respectively. The extension length of these two reinforcing ribs 1153 is consistent with that of the mounting portion 1152. The other reinforcing rib 1153 is plate-shaped and is formed between one side of the mounting portion 1152 and the middle of the extension portion 1151. The surface direction of this reinforcing rib 1153 is generally perpendicular to the circumferential direction of the rim 111.

[0076] Multiple mounting seats 115 are evenly distributed along the circumference of the rim 111 and are respectively located at positions corresponding to each connector 113, that is, at the center of the width direction of the outer end of each spoke 1122. In this embodiment, there are five spokes 1122 and five mounting seats 115. The mounting seats 115 extend from one surface of the spoke 1122, so the connector 113 can be welded from the other surface of the spoke 1122 to the center of the rim 111. That is, the arrangement of the mounting seats 115 does not affect the welding of the connector 113.

[0077] like Figure 2 As shown, the anti-disc brake disc 120 includes an integrally formed brake portion 121 and a mounting disc portion 122.

[0078] The brake section 121 is in the shape of a circular plate and has multiple circular through-holes 121a to ensure air circulation and reduce the heat loss of the brake section 121.

[0079] The mounting disc portion 122 extends outward from the outer edge of the brake portion 121. The mounting disc portion 122 is annular in shape, and its outer edge is gear-shaped, having multiple outwardly protruding portions 1221. Each of these protruding portions 1221 has a fixing hole 1221a, which is evenly distributed along the circumference of the mounting disc portion 122. Other protruding portions 1221 have strip-shaped holes. In this embodiment, the reverse disc brake disc 120 has six circular through-holes 1221a evenly distributed along its circumference, and the distribution of the five fixing holes 1221a corresponds to the distribution of the five mounting holes 114a.

[0080] In addition, a circular heat dissipation groove 120a is provided between the brake part 121 and the mounting plate part 122 for heat dissipation during braking and for expelling debris generated by friction between the brake caliper and the anti-disc brake disc 120.

[0081] In this embodiment, the diameter of the anti-disc brake disc 120 is slightly smaller than the diameter of the anti-disc brake hub body 110. After installation, the anti-disc brake disc 120 does not extend beyond the edge of the rim 111 in the radial direction of the anti-disc brake hub 100.

[0082] The fastener is used to mount the anti-disc brake disc 120 onto the anti-disc brake hub body 110. In this embodiment, the fastener is a screw that matches the mounting hole 114a on the mounting base 114.

[0083] In this embodiment, the diameter of the disc brake hub body 110 can be 6.5 inches, 8 inches, 10 inches or 12 inches, wherein the diameter of the spokes 112 is adapted to the disc brake hub body 110, depending on the design.

[0084] In the mounting base 115, the diameter of the mounting part 1152 is 240mm-255mm, the diameter of the threaded hole 1152 on the mounting base 115 is 246mm-250mm, and the depth of the threaded hole 1152 can be adjusted according to the shape of the wheel spoke 112. The screw is a standard part of the corresponding size.

[0085] Functions and effects of Example 1

[0086] The anti-disc brake hub body provided in this embodiment includes a rim made of iron, spokes made of a different material than the rim, a joint for joining the spokes to the rim, and multiple mounting seats. Because it has multiple mounting seats, the anti-disc brake hub body can be used to mount anti-disc brake discs, forming an anti-disc brake hub with better braking performance. Furthermore, since the rim is made of iron and the spokes are made of other materials, this anti-disc brake hub also has the advantages of traditional composite hubs: the rim has high strength and is less prone to deformation or cracking during use, better ensuring the user's driving safety and reducing the frequency of maintenance; the overall weight of the anti-disc brake hub is lighter, and its appearance is more aesthetically pleasing.

[0087] In this embodiment, the spokes are die-cast aluminum alloy spokes, and the mounting base is integrally formed on the outer end of each spoke. This means that only a mold cavity for forming the mounting base needs to be provided in the mold used to manufacture the spokes, resulting in minimal changes to the manufacturing process of the iron-aluminum composite wheel hub and correspondingly lower equipment modification costs. Furthermore, mounting bases of different shapes can be easily configured as needed.

[0088] Furthermore, the mounting base extends from one surface of the outer end of the spoke and has an extension that matches the shape of the inner ring of the rim, a post formed on the outer end of the extension, and multiple reinforcing ribs formed between the post and the extension. The post has threaded holes, so the mounting base can fit roughly against the rim, and the rim can provide some support for the mounting base. The mounting base itself has higher structural strength due to the reinforcing ribs, making it less prone to deformation or cracking under stress. Moreover, since the mounting base extends from one surface of the outer end of the spoke, the connecting parts can be welded from the other surface of the outer end of the spoke; that is, the installation of the mounting base does not affect the welding of the connecting parts.

[0089] <Example 2>

[0090] Example 1 provides an iron-aluminum composite anti-disc brake hub. The hub body can reliably mount the anti-disc brake disc, and the rim is made of iron, providing sufficient strength. However, in this anti-disc brake hub, since the mounting base is integrally formed with the spokes, the mounting base is still made of aluminum alloy. Aluminum alloy has limited strength; although it is suitable for most everyday use scenarios, in some extreme cases, such as severe impacts, the aluminum alloy mounting base still carries a risk of deformation or cracking.

[0091] Furthermore, in Embodiment 1, since the mounting base is located at the outer end of each spoke, the shape of the spokes will be subject to certain constraints, resulting in limitations on the shape and appearance of the wheel hub product. For example, corresponding to the mounting structure of the anti-disc brake disc, six mounting bases are required, so the spokes must be made into a corresponding structure. For example, the spokes may have six spokes, with one mounting base at the end of each spoke, or the spokes may have three wider spokes, with two mounting bases at the end of each spoke, etc. It is difficult to make the spokes into other structures such as five spokes.

[0092] Therefore, in order to further solve the above problems, this embodiment provides an iron-aluminum composite anti-disc brake hub and a two-wheeled vehicle using the anti-disc brake hub. In this embodiment, the same symbols are assigned to the same constituent elements as in Embodiment 1 and the corresponding descriptions are omitted.

[0093] Figure 6 This is a perspective view of the anti-disc brake wheel hub in this embodiment. Figure 7 These are perspective views of the disc brake hub from different angles in this embodiment. Figure 8 This is a cross-sectional view of the disc brake hub in this embodiment. Figure 9 This is a perspective view of the main body of the anti-disc brake wheel hub in this embodiment.

[0094] like Figures 6 to 9 As shown, compared with Embodiment 1, in the reverse disc brake hub 100 of this embodiment, the mounting base 114 is not integrally formed with the spokes 112, but is made of iron material and welded to the rim 111. Therefore, the reverse disc brake hub 100 of this embodiment also has a welded part formed by welding the mounting base 114.

[0095] Figure 10 This is a perspective view of the mounting base in this embodiment. Figure 11 This is a perspective view of the mounting base at different angles in this embodiment. For ease of description, the x, y, and z axes are marked in the figure. In this embodiment, the x-axis is taken as the length direction of the mounting base, the y-axis as the width direction of the mounting base, and the z-axis as the height direction of the mounting base.

[0096] like Figure 10 and Figure 11As shown, the mounting base 114 in this embodiment has a mounting portion 1141, a mating portion 1142, and a limiting portion 1143. The mounting base 114 is generally in the shape of a notched column, and its cross-section along the radial direction of the rim 111 is "pistol-shaped". The length direction of each mounting base 114 is the axial direction of the rim 111.

[0097] The mounting portion 1141 is used to mount the reverse disc brake disc 120. The mounting portion 1141 is cylindrical, and its cross-sectional shape along its length can be considered as consisting of a taller trapezoid and a shorter trapezoid, with the short sides of the two trapezoids meeting at an arc-shaped junction. A mounting hole 114a is provided at one end of the mounting portion 1141 along its length. In this embodiment, the mounting hole 114a is a threaded hole, and the centerline of the threaded hole is also axially aligned with the rim 111.

[0098] The mating portion 1142 is used to mate with the rim 111. The mating portion 1142 extends from the other end of the mounting portion 1141 along its length, and its extension direction is also consistent with the length direction of the mounting portion 1141. One end of the mating portion 1142 in the height direction has the same shape as the mounting portion 1141, and the other end in the height direction has a notch 1142a, so that the mating portion 1142 has a mating surface 421 for mates with the rim 111.

[0099] The mating surface 421 includes a first abutting surface 4211 and a second abutting surface 4212.

[0100] The first abutting surface 4211 is used to abut against the bottom of the groove 1111 and has a shape that matches the side wall of the bottom of the groove 1111, which is roughly an arc-shaped surface.

[0101] The second abutting surface 4212 is used to abut against the rim 1113 and the bead seat 1112, and has a matching shape. The second abutting surface 4212 is a relatively complex curved surface, which can be roughly regarded as containing two arc surfaces. A step 1142b is formed between the two arc surfaces (that is, at the junction of the rim 1113 and the bead seat 1112).

[0102] The mating surface 421 has four edges, namely, the first edge 421a to the fourth edge 421d. The first edge 421a contacts the bottom of the groove bottom 1111 in the circumferential direction of the rim 111, and is arc-shaped, its curvature matching the circumferential curvature of the outer wall of the groove bottom 1111 near the bottom. The second edge 421b contacts the outer end of the rim 1113 in the circumferential direction of the rim 1111, and is arc-shaped, its curvature matching the circumferential curvature of the outer end of the rim 1113. The two ends of the third edge 421c are connected to one end of the first edge 421a and one end of the second edge 421b, respectively. The third edge 421c contacts and approximately fits the rim 1113 and the bead seat 1112, and is curved, its shape matching the shape of the inner ring of the rim 111 from the bead seat 1112 to the rim 1113. The two ends of the fourth edge 421d are connected to the other ends of the first edge 421a and the second edge 421b, respectively, and the shape of the fourth edge 421d is consistent with that of the third edge 421c.

[0103] Furthermore, a dividing line 421e is formed between the first abutment surface 4211 and the second abutment surface 4212. The dividing line 421e is also a ridge of the mounting seat 114. When the mounting post 114 is mounted on the rim 111, this ridge is located at the junction between the bead seat 1112 and the rim 1113, and there is a gap between the ridge and the junction.

[0104] The welded portion (which can be a weld point or a welding rod) between the mounting base 114 and the rim 111 is provided between at least one of the first edge 421a to the fourth edge 421d and the rim 111. Welding can be performed using any one of laser welding, argon arc welding, or carbon dioxide shielded welding. Preferably, laser welding is used.

[0105] Preferably, the welded portion is located between the first edge 421a and the sidewall of the groove bottom 1111, and between the second edge 421b and the outer end of the rim 1113.

[0106] Preferably, the welded portion is disposed between the third edge 421c and the bead seat 1112 and the rim 1113, and between the fourth edge 421d and the bead seat 1112 and the rim 1113.

[0107] More preferably, the welded portion is disposed between the first edge 421a and the side wall of the groove bottom 1111, between the second edge 421b and the outer end of the rim 1113, between the third edge 421c and the bead seat 1112 and the rim 1113, and between the fourth edge 421d and the bead seat 1112 and the rim 1113.

[0108] Preferably, the anti-disc brake hub 100 also has an additional welded portion formed by the welding mounting base 114. The additional welded portion is disposed between the aforementioned ridge of the mounting base 114 and the junction between the tire bead seat 1112 and the rim 1113. That is, during welding, welding material flows into the gap to fill the gap.

[0109] Preferably, the shape of the step 1142b of the mounting base 114 is such that there is a small gap between the step 1142b and the junction of the rim 1113 and the bead seat 1112, and at least one of the third edge 421c and the fourth edge 421d has a small opening between the junction and the step 1142b and the junction of the rim 1113 and the bead seat 1112. That is, during welding, the welding material flows into the gap through the opening to fill the gap.

[0110] The limiting portion 1143 extends from the edge of the mounting portion 1141 at one end with the mounting hole 114a, and its extending direction is consistent with the length direction of the mounting portion 1141. The limiting portion 1142 is in the shape of an arc plate, the curvature of which matches the curvature of the edge of the reverse disc brake disc 120, and its extending length is slightly greater than the overall thickness of the reverse disc brake disc 120, and is used to limit the reverse disc brake disc 120.

[0111] Furthermore, for ease of description, the two end faces in the height direction of the mounting base 114 are respectively referred to as the first end face 1144 and the second end face 1145, wherein the second edge 421b of the mating surface 421 is connected to one edge of the second end face 1145.

[0112] Figure 12 yes Figure 8 A magnified view of the area inside circle C. Figure 13 This is a side view of the mounting base in this embodiment.

[0113] like Figure 12 and Figure 13 As shown, in the axial direction of the anti-disc brake hub 100, the mounting portion 1141 of the mounting base 114 extends beyond the rim 1113 of the rim 111. The anti-disc brake disc 120 can be mounted on the outside of one side of the hub body 110 through the mounting base 114. In this way, an anti-disc brake disc 120 with a diameter close to that of the hub body 110 can be used, and a certain gap is provided between the anti-disc brake disc 120 and the rim 1113 of the rim 111 to provide sufficient space for installing the caliper.

[0114] In the axial direction of the disc brake hub 100, the length l1 of the notch 1142a corresponds to the total length of the bead seat 1112 and the rim 1113. Combined with the shape of the mating surface 11421, this allows the mounting seat 114 to fit snugly against the inner ring of the rim 111. In the radial direction of the disc brake hub 120, the height h of the mounting seat 114 is less than the distance D3 from the middle of the groove bottom 1111 to the farthest end of the rim 1113. Furthermore, in the radial direction of the disc brake hub 120, the distance d1 from the step 11421e of the mounting seat 114 to the second end face 1145 is less than the height D1 of the rim 1113 (i.e., the distance from the second bend to the edge of the rim 112), and the distance d2 from the step 11421e to the first end face 1144 is less than the distance D2 from the end of the rim extension 122 near the rim 1113 (i.e., the second bend) to the middle of the groove bottom 1111.

[0115] In this way, in the radial direction of the anti-disc brake hub 120, the mounting seat 114 is located between the outer end of the rim 1113 and the bottom surface of the groove 1111. That is, the first end face 1144 of the mounting seat 114 does not exceed the edge of the rim 111, so it will not affect the installation of the tire. The second end face 1145 of the mounting seat 114 does not exceed the middle of the inner ring of the rim 111, so the mounting seat 114 is not visible from the other side of the anti-disc brake hub 120, making the wheel look more aesthetically pleasing. Furthermore, the mounting seat 114 does not obstruct the connector 113 from either direction, so it will not affect the welding of the connector 113. In terms of process, the mounting seat 114 can be welded to the rim 111 first, and then the spokes 112 can be welded to the rim 111 through multiple connectors 113, or the spokes 112 can be connected first, and then the mounting seat 114 can be welded, which provides greater process flexibility.

[0116] In this embodiment, the shape of the mounting base 114 is formed by line laser cutting.

[0117] Furthermore, since both the mounting base 114 and the rim 111 are made of iron and are connected by welding, the mounting base 114 itself and the combination of the two have high strength. Compared with Embodiment 1, the anti-disc brake hub body 110 of this embodiment can be provided with a relatively smaller number of mounting bases 114, for example, 3 or 4 mounting bases 114 are provided and evenly distributed along the circumference of the rim 111. Correspondingly, the anti-disc brake disc 120 has a corresponding number of fixing holes 1221a.

[0118] In this embodiment, the diameter of the anti-disc brake hub body 110 can be 6.5 inches, 8 inches, 10 inches or 12 inches, wherein the diameter of the spokes 112 is adapted to the anti-disc brake hub body 110, depending on the design.

[0119] The diameter of the threaded hole 1141a on the mounting portion 1141 of the mounting base 114 is the same as that in Embodiment 1, and the depth of the threaded hole 1141a can also be adjusted according to the shape of the spokes 112.

[0120] In this embodiment, the other structures are the same as in Embodiment 1, so they will not be described again.

[0121] Functions and effects of Example 2

[0122] Based on the functions and effects of Embodiment 1, the anti-disc brake hub body, anti-disc brake hub, and two-wheeled vehicle provided in this embodiment, since the mounting seat is also made of iron and welded to the iron rim, the mounting seat has higher strength. Even when the two-wheeled vehicle is heavily loaded, braking downhill, or when the anti-disc brake disc and mounting seat are subjected to severe impacts, the mounting seat is not easily deformed or cracked. Furthermore, since the mounting seat is welded to the rim and not connected to the spokes, there are no restrictions on the shape of the spokes, allowing for the production of hub products with a wider variety of shapes and appearances.

[0123] Furthermore, since both the mounting base and the wheel rim are made of iron, and the mounting base is welded to the wheel rim, the mounting base, the wheel rim, and their connection points all have sufficient strength. Therefore, compared to Embodiment 1, fewer mounting bases can be set while ensuring connection strength. This makes the assembly of the two-wheeled vehicle more convenient and efficient.

[0124] Furthermore, the mounting base has a mounting part, a welding part, and a limiting part. The welding part has a recessed portion whose shape matches the inner ring of the wheel rim, so the mounting base can fit and weld well onto the inner ring of the wheel rim, and the bonding strength between the two is higher.

[0125] Furthermore, the dimensions of the mounting bracket ensure that the first end face of the mounting bracket in the radial direction of the wheel hub does not exceed the edge of the wheel rim, thus preventing the mounting bracket from affecting the installation of the tire. At the same time, the second end face does not exceed the center of the inner ring of the wheel rim, making the mounting bracket invisible from the other side of the anti-disc brake wheel hub, resulting in a more aesthetically pleasing appearance. Moreover, the mounting bracket does not affect the welding of the connecting parts at the spoke ends. In terms of process, the mounting bracket can be welded first, followed by welding the connecting parts to connect the spokes to the wheel rim, or vice versa, allowing for greater process flexibility.

[0126] In the embodiment, the weld point or weld between the mounting base and the rim is formed between the first edge of the mounting base and the edge of the rim, and between the fifth edge and the inner ring of the rim. Since both the first edge and the fifth edge are arc-shaped, the shape is relatively simple. In this way, while ensuring the bonding strength between the mounting base and the rim and the mounting base being able to withstand the predetermined shear force, the welding process is relatively simple.

[0127] In the preferred embodiment, the weld points or welds between the mounting base and the rim are formed between the three edges of the recessed portion and the inner ring of the rim, and between the fourth edge and the inner ring of the rim. Since the mounting base is mainly subjected to shear force along the tangential direction of the rim during braking, the weld points or welds on the third and fourth edges can better withstand the shear force, and the mounting base is less likely to deform or crack during braking.

[0128] In a more preferred embodiment, the weld points or welds between the mounting base and the rim are formed between the four edges of the mounting base and the rim. In this way, the mounting base can withstand higher shear forces and is less prone to deformation or cracking even in some extreme cases, thus providing higher safety.

[0129] In the preferred embodiment, the step on the bottom of the mounting base does not completely fit with the inner ring of the rim, but leaves a small gap for the welding material to flow in. This ensures the bonding strength between the mounting base and the rim, while also better preventing the rim from rusting and improving the service life of the anti-disc brake hub.

[0130] <Example 3>

[0131] This embodiment provides an iron-aluminum composite anti-disc brake hub and a two-wheeled vehicle using the anti-disc brake hub. In this embodiment, the same symbols are assigned to the same constituent elements as in Embodiment 2, and the corresponding descriptions are omitted.

[0132] Compared to Embodiment 2, the difference lies in that the joint in this embodiment is an annular iron component, welded to the center of the inner ring of the rim 111 (i.e., the bottom of the groove 1111). The joint has multiple through holes extending axially along the rim 111. When casting the spokes 112, the rim 111 with the welded joint is placed into the corresponding mold, and molten aluminum is poured in, thereby forming spokes 112 on the inner ring of the rim 111. The outer ends of each spoke 1122 of the spokes 112 wrap around the joint, and during casting, the molten aluminum also flows through the multiple through holes on the joint and forms at these locations, so that the spokes 112 wrap around and grip the joint, resulting in high bonding strength.

[0133] Multiple mounting seats 114 are welded to the joint and mounted on the rim 111, with the mounting seats 114 evenly distributed along the circumference of the rim 111. Specifically, the structure of the mounting seat 114 is similar to that in Embodiment 2, also having a mounting portion 1141, a mating portion 1142, and a limiting portion 1143. The mating portion 1142 also has a mating surface 421, which includes a first abutting surface 4211 and a second abutting surface 4212. The difference is that the first abutting surface 4211 is used to abut against the joint, and it is an arc-shaped surface with an arc matching the joint; the second abutting surface 4212 is used to abut against the groove bottom 1111, the bead seat 1112, and the rim 1113, and has a curved surface shape that matches them.

[0134] The first abutment surface 4211 has four edges, one of which is located at the junction between the joint and the groove bottom 1111, and is thus covered when the mounting seat 114 is placed on the rim 111. The welded portion (which may be a weld point or a welding rod) between the mounting seat 114 and the joint is provided between at least one of the other three edges of the first abutment surface 4211 and the joint.

[0135] Preferably, the welded portion is disposed between two opposing edges of the other three edges of the first abutment surface 4211 and the joint portion.

[0136] More preferably, the welding portion is disposed between the aforementioned three edges and the joint portion of the first abutment surface 4211.

[0137] Furthermore, similar to Embodiment 2, in the radial direction of the anti-disc brake hub body 110, the first end face 144 of the mounting seat 114 does not extend beyond the outer end of the rim 1113, and the second end face 1145 does not extend beyond the inner ring of the joint. In this way, the mounting seat 114 does not affect tire installation, and it is not visible from the other side of the anti-disc brake hub 100, resulting in a more aesthetically pleasing appearance.

[0138] The above embodiments are merely illustrative of specific implementations of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only for illustrating the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0139] In the above embodiment, the spokes are made of aluminum alloy. In an alternative, the spokes can also be made of other materials with sufficient strength, different from the rim, such as engineering plastics or carbon fiber composites.

[0140] In the above embodiments, both the rim and the connector are made of iron. In alternative embodiments, the rim and the connector can also be made of other ferrous materials, such as steel. Furthermore, the material of the connector can also be different from that of the rim, using a material that can be effectively welded to the ferrous rim.

[0141] In the above embodiment 2, the length direction of the mounting seat is the axial direction of the rim. In an alternative, provided that there is sufficient strength, the length direction of the mounting seat can also form a certain angle with the axial direction of the rim, that is, from the outer end of the mounting seat connected to the rim, the mounting seat is inclined towards the center of the rim.

Claims

1. A reverse disc brake hub body for mounting a reverse disc brake disc, characterized in that, include: The wheel rim is made of iron. The spokes are made of a different material than the rim. A connecting part for joining the spokes to the rim; as well as Multiple mounting brackets are provided for mounting the reverse disc brake disc. Multiple mounting seats are evenly arranged on the wheel rim. The mounting base is in the shape of a notched column, and its length direction is the axial direction of the rim. The rim has a groove bottom, a bead seat, and a flange. The mounting base includes: The mating part mates with the groove bottom, the tire bead seat, and the wheel rim; The mounting portion, integrally formed with the mating portion, has mounting holes that match the mounting holes of the reverse disc brake disc, the centerline of which is oriented along the axial direction of the rim; and The welded portion is located between the mounting base and the wheel rim. The mating portion has a mating surface for mating with the wheel rim. The mating surfaces include: The first contact surface abuts against the bottom of the groove; The second contact surface abuts against the bead seat and the wheel flange; The first edge contacts the bottom of the groove in the circumferential direction of the rim; The second edge contacts the outer end of the rim in the circumferential direction of the rim; The third edge, connecting one end of the first edge and one end of the second edge; and The fourth edge connects the other end of the first edge to the other end of the second edge. The welded portions are disposed on the first edge, the second edge, the third edge, and the fourth edge. The second abutment surface forms a step at the junction of the wheel rim and the bead seat, and the area between the first abutment surface and the second abutment surface is an edge of the mounting seat. An additional welded portion is provided between the step and the junction, and an additional welded portion is provided between the edge and the junction of the bead seat and the bottom of the groove.

2. The anti-disc brake hub body according to claim 1, characterized in that: in, The mounting base also has: The limiting portion is integrally formed with the mounting portion and is used to limit the anti-disc brake disc in the radial direction of the anti-disc brake hub body.

3. The anti-disc brake hub body according to claim 1, characterized in that: in, The number of mounting bases is 3 to 6.

4. A reverse disc brake hub body for mounting a reverse disc brake disc, characterized in that, include: The wheel rim is made of iron. The spokes are made of a different material than the rim. A connecting part for joining the spokes to the rim; as well as Multiple mounting brackets are provided for mounting the reverse disc brake disc. The spokes have a plurality of spokes. The plurality of mounting seats are respectively disposed on the plurality of spokes and are distributed circumferentially along the main body of the anti-disc brake wheel hub. The mounting base has: The extension portion, integrally formed with the spokes, extends from the outer end of the spokes and rests on the rim; and The mounting portion, integrally formed with the extension portion, has mounting holes that match the mounting holes of the reverse disc brake disc, the centerline of which is oriented along the axial direction of the rim. The rim has a groove bottom, a bead seat, and a flange. The extension portion mates with the grooved bottom, the bead seat, and the wheel rim.

5. The anti-disc brake hub body according to claim 4, characterized in that: in, The mounting hole is a threaded hole. The mounting portion has a threaded hole made of ferrous material pre-embedded in it, thereby forming the threaded hole.

6. The anti-disc brake hub body according to any one of claims 1-5, characterized in that: in, The joint includes multiple connectors, which are respectively disposed at the outer ends of a plurality of spokes of the wheel spoke. At least a portion of the connector is embedded in the outer end of the corresponding spoke, and the exposed portion of the connector is welded to the rim.

7. The anti-disc brake hub body according to any one of claims 1-5, characterized in that: in, The joint is a ring-shaped component, welded to the center of the inner ring of the rim. At least a portion of the joint is embedded in the outer ends of the plurality of spokes of the wheel spoke.

8. A type of anti-disc brake wheel hub, characterized in that, include: Reverse disc brake wheel hub body; as well as A reverse disc brake disc is mounted on one side of the reverse disc brake hub body and is used for braking. Wherein, the anti-disc brake hub body is the anti-disc brake hub body as described in any one of claims 1-7.

9. The anti-disc brake hub according to claim 8, characterized in that, Also includes: Multiple fasteners, The edge of the reverse disc brake disc has multiple fixing holes. The fasteners are used to cooperate one-to-one with the plurality of fixing holes and the plurality of mounting seats of the anti-disc brake disc, thereby installing the anti-disc brake disc on the anti-disc brake hub body.

10. A two-wheeled vehicle, characterized in that, include: Reverse disc brake rims; as well as Brake, used to engage with the anti-disc brake hub for braking. Wherein, the anti-disc brake hub is the anti-disc brake hub as described in claim 8 or 9.

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