Connecting piece of butterfly brake seat and butterfly brake hub

Abstract

The utility model relates to a connecting piece of butterfly brake seat and butterfly brake hub, which comprises an iron cylindrical bearing sleeve joint part and an iron butterfly brake seat joint part connected with the bearing sleeve joint part, wherein the butterfly brake seat joint part is a protruding structure connected to the top of the bearing sleeve joint part or the outer wall of the bearing sleeve joint part, and a positioning part is arranged on the upper surface of the butterfly brake seat joint part. The utility model solves the problems of high processing cost and large processing tool consumption of the mounting hole of the existing iron butterfly brake hub. It not only balances the price advantage of the iron hub and the high processing cost of the iron hub, but also improves the production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of wheel hub structure and its manufacturing process, and in particular to a connecting part for a disc brake seat and a disc brake wheel hub. Background Technology

[0002] Currently available disc brake rims are made of both aluminum and iron. Aluminum rims are more expensive and are gradually being replaced by cheaper iron rims.

[0003] However, while iron disc brake hubs have an advantage in raw material price compared to aluminum disc brake hubs, their processing costs are not low. For example, when machining the mounting holes for disc brake mounts, the machining speed for aluminum disc brake mounts is more than 20% faster than for iron disc brake mounts. Furthermore, machining the mounting holes for iron disc brake mounts consumes more than six times the amount of cutting tools compared to aluminum disc brake mounts. Moreover, the machining time for iron disc brake mounts is 20% longer than that for aluminum disc brake mounts, resulting in relatively lower production efficiency.

[0004] However, the price advantage of iron cannot be ignored. How to balance the price advantage with processing costs and efficiency is a problem that needs to be solved in the current disc brake wheel hub processing. Utility Model Content

[0005] The purpose of this utility model is to provide a connecting part for a disc brake seat and a disc brake hub, which solves the problems of high machining cost and high consumption of machining tools for the mounting holes of existing iron disc brake hubs.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A connecting component for a disc brake seat includes an iron bearing sleeve coupling portion and an iron disc brake seat coupling portion connected to the bearing sleeve coupling portion; the bearing sleeve coupling portion is a cylinder adapted to the bearing sleeve, and the disc brake seat coupling portion is a protruding structure connected to the top of the cylinder or to the outer wall of the cylinder for covering the casting material of the disc brake mounting seat.

[0008] The butterfly brake seat joint is a protruding annular structure that is connected to the top of the cylinder or to the outer wall of the cylinder.

[0009] The edges of the ring structure are wavy, or the edges of the ring structure are intermittently provided with inward recesses.

[0010] The butterfly brake seat joint is an ear-shaped protrusion with the same shape as the butterfly brake mounting seat, which is connected to the top of the cylinder or to the outer wall of the cylinder.

[0011] At least three ear-shaped protrusions are provided, and each ear-shaped protrusion is provided with a through hole.

[0012] When the disc brake seat joint is connected to the top of the cylinder of the bearing sleeve joint, a positioning part is provided on the upper surface of the disc brake seat joint to prevent the die-casting of the connecting parts from shifting.

[0013] The positioning part is a protrusion on the upper surface of the butterfly brake seat joint, or a ring protruding from the upper surface of the butterfly brake seat joint.

[0014] Two or more parts of the protruding structure that constitutes the joint of the butterfly brake seat are bent upward to form a positioning part.

[0015] A disc brake hub includes a rim and spokes, with a bearing sleeve disposed in the center of the spokes; the bearing sleeve is welded to the bearing sleeve joint of the connecting member, and the disc brake mounting seat is connected to and covers the disc brake seat joint.

[0016] The butterfly brake mounting bracket, which connects to and covers the butterfly brake seat joint, is an aluminum component formed by die casting.

[0017] The advantages of this utility model are as follows: 1. The aluminum disc brake mounting base can be fixedly connected to the connector by die casting. The die-cast disc brake base has both the strength of iron and is convenient for machining the mounting holes, improving processing efficiency and reducing the wear of machining tools; 2. The disc brake base joint is provided with a positioning part to prevent the connector from shifting during die casting. After the die casting mold is closed, the base material (aluminum or engineering plastic) is injected. Since the positioning part of the disc brake base joint holds against the mold on the other side, the connector will not move during the die casting process. After the die casting is completed, the base material completely covers the disc brake base joint of the connector; 3. The disc brake base joint can be set at the top of the bearing sleeve joint or below the top. When set below the top, the part of the bearing sleeve joint protruding from the disc brake base joint also serves as a positioning part; 4. Compared with the existing iron disc brake hub, the disc brake hub using this utility model achieves a balance between the price advantage of iron hubs and the excessively high processing cost of iron hubs, and also improves processing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a first embodiment of the connector in this utility model;

[0019] Figure 2 This is a structural cross-sectional view of one embodiment of the connector in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connector in Embodiment 2 of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the connector in Embodiment 3 of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the connector in Embodiment 4 of this utility model;

[0023] Figure 6 This is a structural schematic diagram of Embodiment 5 of the connector in this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of Embodiment Six of the connector in this utility model;

[0025] Figure 8 This is a schematic diagram showing the connection relationship between the connector, the disc brake mounting base, and the bearing sleeve in this utility model;

[0026] Figure 9 This is an exploded view showing the connection relationship between the connector, the disc brake mounting base, and the bearing sleeve in this utility model.

[0027] Figure 10 This is an exploded view of the structure of a disc brake hub containing a connector of this utility model;

[0028] Figure 11 This is an exploded view of the structure of a disc brake hub containing another connecting component of this utility model.

[0029] Illustration: 1-Bearing sleeve joint; 2-Butterfly brake seat joint; 21-Ear-shaped protrusion; 3-Positioning part; 31-Ring; 4-Butterfly brake mounting seat; 5-Bearing sleeve; 6-Wheel rim; 7-Wheel spoke. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0031] To simplify the description of this embodiment, some components that are well-known to those skilled in the art but are not related to the main content of this invention may be omitted in the accompanying drawings or description. Additionally, for ease of description, some components in the drawings may be omitted, enlarged, or reduced, but these do not represent the actual product dimensions or the complete structure.

[0032] A connecting component for a butterfly brake seat, such as Figure 1-7 As shown, it includes an iron bearing sleeve joint 1 and an iron disc brake seat joint 2 connected to the bearing sleeve joint 1; the bearing sleeve joint 1 is a cylinder adapted to the bearing sleeve 5, and the disc brake seat joint 2 is a protruding structure connected to the top of the cylinder or to the outer wall of the cylinder for covering the casting material of the disc brake mounting seat 4.

[0033] like Figure 1 , Figure 3 , Figure 4 As shown in Embodiments 1, 2, and 3, the butterfly brake seat joint 2 is a protruding annular structure connected to the top of the cylinder, or it can be as follows: Figure 5 As shown in Embodiment 4, the butterfly brake seat joint 2 is a protruding annular structure connected to the outer wall of the cylinder.

[0034] The butterfly brake seat joint 2 is designed as a protruding ring structure, mainly so that when the butterfly brake mounting seat 4 is die-cast, the casting material of the butterfly brake mounting seat 4, such as molten aluminum, can firmly cover the butterfly brake seat joint 2.

[0035] Furthermore, the edges of the annular structure are wavy, or the edges of the annular structure are intermittently recessed inwards. This allows the disc brake mounting base 4 to be securely connected to the disc brake seat joint 2 after die casting.

[0036] To strengthen the disc brake mounting bracket 4, such as Figure 4 In the third embodiment shown, the butterfly brake seat joint 2 is an ear-shaped protrusion 21 with the same shape as the butterfly brake mounting seat 4, which is connected to the top of the cylinder or to the outer wall of the cylinder. This ear-shaped protrusion 21 serves as the die-cast blank for the butterfly brake mounting seat 4. Thus, the die-cast butterfly brake seat has an aluminum-clad iron structure at the mounting hole position, which has higher strength than a purely aluminum structure.

[0037] Furthermore, in conjunction with the disc brake pad, at least three ear-shaped protrusions 21 are provided to improve efficiency when machining the mounting holes of the disc brake mounting base 4. Each ear-shaped protrusion 21 has a pre-set through hole corresponding to the mounting hole of the disc brake mounting base 4. In this way, subsequent machining only requires drilling holes in the aluminum material of the disc brake mounting base 4, which improves efficiency and reduces the consumption of machining drill bits.

[0038] To prevent the connecting parts from shifting under the impact of molten aluminum during die casting, when the disc brake seat joint 2 is connected to the top of the cylinder of the bearing sleeve joint 1, a positioning part 3 is provided on the upper surface of the disc brake seat joint 2 to prevent the connecting parts from shifting during die casting. The positioning part 3 can hold the moving mold body in place during die casting, ensuring a stable position.

[0039] Preferably, such as Figure 3 , 4 As shown in Figures 9 and 10, the positioning part 3 is a protrusion on the upper surface of the butterfly brake seat joint part 2. The protrusion can be a pointed triangle or a square, and the shape of the protrusion can be set arbitrarily as needed.

[0040] Positioning part 3 can also be like Figure 5 , Figure 11As shown, the positioning part 3 is a ring 31 protruding from the upper surface of the butterfly brake seat joint 2. This design is the same as the design where the butterfly brake seat joint 2 is located on the outer wall of the cylinder of the bearing sleeve joint 1.

[0041] Positioning part 3 can also be like Figure 6 , Figure 7 As shown in Embodiments 5 and 6, two or more portions of the protruding structure constituting the butterfly brake seat joint 2 are bent upwards to form the positioning portion 3. During processing, the protruding structure is obliquely cut into the edge, and then the cut portion is bent upwards to form the positioning portion 3. This processing mode saves time and materials.

[0042] A disc brake wheel hub includes a rim 6 and spokes 7, with a bearing sleeve 5 located in the center of the spokes 7; for example Figure 8-11 As shown, the bearing sleeve 5 is welded to the bearing sleeve joint 1 of the aforementioned connector. The inner diameter of the bearing sleeve joint 1 is larger than the outer diameter of the bearing sleeve 5. The butterfly brake mounting seat 4 is connected to and covers the butterfly brake seat joint 2.

[0043] The butterfly brake mounting base 4, which is connected to and covers the butterfly brake seat joint 2, is an aluminum component formed by die casting.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should be considered within the technical scope of this utility model.

Claims

1. A connecting component for a butterfly brake seat, characterized in that: It includes an iron bearing sleeve joint (1) and an iron disc brake seat joint (2) connected to the bearing sleeve joint (1); the bearing sleeve joint (1) is a cylinder adapted to the bearing sleeve (5), and the disc brake seat joint (2) is a protruding structure connected to the top of the cylinder or to the outer wall of the cylinder for covering the casting material of the disc brake mounting seat (4).

2. The connecting member of the butterfly brake seat according to claim 1, characterized in that: The butterfly brake seat joint (2) is a protruding annular structure connected to the top of the cylinder or to the outer wall of the cylinder.

3. The connecting member of the butterfly brake seat according to claim 2, characterized in that: The edges of the ring structure are wavy, or the edges of the ring structure are intermittently provided with inward recesses.

4. The connecting member of the butterfly brake seat according to claim 1, characterized in that: The butterfly brake seat joint (2) is an ear-shaped protrusion (21) that is connected to the top of the cylinder or to the outer wall of the cylinder and has the same shape as the butterfly brake mounting seat (4).

5. The connecting member of the disc brake seat according to claim 4, characterized in that: At least three ear-shaped protrusions (21) are provided, and each ear-shaped protrusion (21) is provided with a through hole.

6. The connecting member of the butterfly brake seat according to claim 1, characterized in that: When the butterfly brake seat joint (2) is connected to the top of the cylinder of the bearing sleeve joint (1), a positioning part (3) is provided on the upper surface of the butterfly brake seat joint (2) to prevent the die casting of the connecting parts from shifting.

7. The connecting member of the disc brake seat according to claim 6, characterized in that: The positioning part (3) is a protrusion provided on the upper surface of the butterfly brake seat joint (2), or a ring (31) protruding from the upper surface of the butterfly brake seat joint (2).

8. The connecting member of the disc brake seat according to claim 6, characterized in that: Two or more parts of the protruding structure that constitutes the butterfly brake seat joint (2) are bent upward to form a positioning part (3).

9. A disc brake wheel hub, comprising a rim (6) and spokes (7), wherein a bearing sleeve (5) is disposed at the center of the spokes (7); characterized in that: The bearing sleeve (5) is welded to the bearing sleeve joint (1) of the connector as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, and the disc brake mounting seat (4) is connected to and covers the disc brake seat joint (2).

10. The disc brake hub according to claim 9, characterized in that: The butterfly brake mounting base (4), which is connected to and covers the butterfly brake seat joint (2), is an aluminum component formed by die casting.

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