Novel lock brake disc assembly

Abstract

The utility model relates to the technical field of brake discs of electric vehicles, and discloses a novel lock brake disc assembly which comprises a brake disc seat and a brake hub insert embedded in the inner side of the brake disc seat, the brake disc seat is composed of a brake disc seat bottom face and a brake disc seat side face connected to the brake disc seat bottom face, and a center shaft positioning hole is formed in the center of the brake disc seat bottom face. A plurality of fixed mounting holes are formed in the annular surface of the outer side of the center shaft positioning hole, a plurality of locking hole grooves matched with the lock pins are formed in the side face of the brake disc seat, and the brake hub insert is connected to the inner side of the side face of the brake disc seat in an attached mode through a buckle rotation stopping structure; the problems that high-temperature sintering carbon deposition and abnormal braking sound are easily generated due to friction between the brake surface of the lock brake disc and materials used by a brake hub and a brake shoe, and the brake disc is high in manufacturing precision and manufacturing cost due to the fact that the brake disc is sleeved with the outer side of the brake disc through welding, and the brake effect and the service life of a brake are affected due to welding deformation are solved.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle brake disc technology, specifically to a novel brake disc assembly. Background Technology

[0002] Shared bicycles or electric bikes have become a common mode of transportation for ordinary people. In order to facilitate convenience and reduce the risk of theft, some bicycles use brake devices with locks. This requires the use of brake drums or brake discs with lock holes, such as the brake disc assembly for electric bicycles disclosed in CN2915642Y and the brake disc sleeve for electric bicycles disclosed in CN2915641Y. As traditional follow-up brakes have been proven in practice, their follow-up locking structure can cause the brake shoes to lock up instantly during braking. The rear drum can slide on the ground and easily cause a fishtailing phenomenon, which poses a safety hazard during braking.

[0003] To address safety concerns, some bicycles have switched to hub brake structures. However, due to the simple rear wheel structure of bicycles, the current manufacturing process for hub brake discs using a follow-up locking mechanism results in a large amount of frictional heat generated during continuous braking. This heat dissipation is poor, leading to high-temperature carbon buildup, which affects braking performance, shortens brake shoe lifespan, and causes abnormal braking noise. Furthermore, this structure uses a brake disc sleeve with a locking hole welded to the outside of the brake disc, with the inner ring of the brake disc as the braking surface. The outer ring of the brake disc needs to be welded and assembled with the brake disc sleeve, requiring high manufacturing precision, increasing manufacturing costs. After the inner and outer rings are properly fitted, multiple welding points are needed to ensure weld strength. This can lead to brake disc or locking ring deformation after cooling, further affecting braking performance.

[0004] Therefore, there is an urgent need in this field for a hub brake locking disc structure that can overcome the influence of frictional heat sintering and carbon buildup, while also being simple in structure and ensuring braking accuracy. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a novel brake disc assembly that overcomes the problems of high-temperature sintering and carbon buildup caused by the material used on the braking surface of the brake disc or brake drum in existing technologies, which leads to abnormal braking noise due to friction with the brake shoes; and the fact that the outer side of the brake disc in the brake disc assembly is formed by welding, which results in problems such as high manufacturing precision, high manufacturing cost, and welding deformation affecting braking performance and service life.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This utility model is a novel brake disc locking assembly, including a brake disc seat and a brake hub insert embedded inside the brake disc seat. The brake disc seat consists of a bottom surface of the brake disc seat and a side surface of the brake disc seat connected to the bottom surface of the brake disc seat. A central shaft positioning hole is provided at the center of the bottom surface of the brake disc seat, and multiple fixing holes are provided on the outer circumferential surface of the central shaft positioning hole. Multiple locking slots that are adapted to the locking pin are provided on the side surface of the brake disc seat. The brake hub insert is fitted and connected to the inner side surface of the brake disc seat through a snap-fit ​​anti-rotation structure.

[0008] A further improvement is that the buckle anti-rotation structure consists of an insert positioning groove provided at the connection between the bottom surface of the brake disc seat and the side surface of the brake disc seat, and an anti-rotation boss provided at the top of one end of the brake drum insert.

[0009] A further improvement is that the bottom surface of the brake disc seat is also provided with a bayonet that communicates with the central shaft positioning hole.

[0010] A further improvement is that the side of the brake disc seat is also provided with a limiting connection hole at intervals, and the side of the brake hub insert is provided with a connection hole groove structure corresponding to the limiting connection hole.

[0011] A further improvement is that the side of the gate plate seat is also provided with mounting holes for induction magnetic blocks.

[0012] A further improvement is that the gate disc seat is a one-piece sheet metal structure, and the bottom surface of the gate disc seat is also provided with an annular embossed reinforcement structure.

[0013] A further improvement is that the brake hub insert is made of cast iron HT200 material.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] 1. This application provides a method by creating multiple locking holes and slots on the side of the brake disc seat that are compatible with the locking pin. A brake drum insert is fitted and embedded on the inner side of the side of the brake disc seat. The brake drum insert is designed as a circular ring structure with its inner side being the braking surface. A snap-fit ​​anti-rotation structure is formed by setting an anti-rotation boss at the top of one end of the brake drum insert and fitting it with the insert positioning groove on the side of the brake disc seat. The brake drum insert is positioned into the brake disc seat, and the anti-rotation boss and the insert positioning groove engage to achieve anti-rotation. To ensure a firm connection between the two, they can be shaped, flattened, or piled up after being fitted and snapped together. The structure is simple and easy to assemble. The connection is firm and reliable, and it can also ensure braking accuracy. The braking is safe and reliable. The connection process will not cause deformation of the brake disc seat and the brake drum insert, thus affecting the braking effect.

[0016] 2. The brake drum insert is made of cast iron HT200 material, which can ensure the manufacturing precision of the brake surface with a simple manufacturing process. At the same time, cast iron HT200 material has the effect of stabilizing the coefficient of friction and absorbing braking noise.

[0017] 3. At the same time, the brake drum insert made of cast iron HT200 material that fits and is embedded in the brake disc seat has a good heat transfer effect, which reduces the braking temperature, slows down heat fade, and effectively extends the service life of the brake shoes. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of one side of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the other side of this utility model.

[0020] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0021] Figure 4 This is a cross-sectional view of one position of the present invention.

[0022] Figure 5 This is a cross-sectional view of another position of this utility model.

[0023] Attached image labels:

[0024] Brake disc seat 1, bottom surface of brake disc seat 11, central shaft positioning hole 111, fixed mounting hole 112, bayonet 113, insert positioning groove 114, side surface of brake disc seat 12, locking hole groove 121, limit connection hole 122, induction magnetic block mounting hole 123, brake drum insert 2, anti-rotation boss 21, connecting hole groove structure 22. Detailed Implementation

[0025] To enhance understanding of this utility model, it will be further described in detail below with reference to the accompanying drawings. This embodiment is only used to explain this utility model and does not constitute a limitation on the scope of protection of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the combination 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.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1-5The diagram shows a novel brake disc assembly, comprising a brake disc seat 1 and a brake hub insert 2 fitted inside the brake disc seat 1. The brake disc seat 1 consists of a bottom surface 11 and a side surface 12 connected to the bottom surface 11. A central shaft positioning hole 111 is provided at the center of the bottom surface 11, and multiple fixing holes 112 are provided on the outer circumferential surface of the central shaft positioning hole 111. The side surface 12 of the brake disc seat has multiple locking slots 121 adapted to the locking pin, wherein the locking slots 121 can be configured as round holes, oblong holes, or U-shaped openings larger than the locking pin. All types of slotted structures are acceptable. The central shaft positioning hole 111 is used to fit onto the wheel hub axle, and then the brake disc seat 1 is connected and fixed to the wheel hub axle by fastening bolts through the locking slot 121. The brake hub insert 2 is attached to the inner side of the brake disc seat side 12 by a snap-lock anti-rotation structure. The snap-lock anti-rotation structure consists of an insert positioning groove 114 provided at the connection between the bottom surface 11 and the side surface 12 of the brake disc seat and an anti-rotation boss 21 provided at the top of one end of the brake hub insert 2. The locking mechanism is achieved by opening a locking slot on the side surface 12 of the brake disc seat 1. Multiple locking slots 121 of the pin are fitted and fitted with a brake hub insert 2 on the inner side of the brake disc seat 12. The brake hub insert 2 is designed as a ring structure, and its inner side is the braking surface. A snap-fit ​​anti-rotation structure is formed by an anti-rotation boss 21 provided at the top of one end of the brake hub insert 2 and an insert positioning groove 114 provided on the bottom surface of the brake disc seat. The brake hub insert 2 is pressed into the brake disc seat 1 by positioning. After the anti-rotation boss 21 and the insert positioning groove 114 are engaged, the rotation is stopped. In order to make the connection between the two secure, they can be embedded in the brake disc seat 1. After installation, the brake disc is shaped, flattened, or piled up. The structure is simple and easy to assemble, and the connection is firm and reliable, ensuring braking accuracy. During the connection process, the brake disc seat 1 and brake drum insert 2 will not be deformed, thus affecting the braking effect and the opening of the lock. The brake drum insert 2 and brake disc seat 1 have good heat transfer effect, reducing braking temperature, slowing down heat fade, and extending the service life of the brake shoes. This structure is not only suitable for ordinary follow-up lock brake discs with mounting threaded inner rings, but also for simple single-wheel hub brake discs.

[0029] An alternative implementation, such as Figure 1-3 As shown: The bottom surface 11 of the brake disc seat is also provided with a bayonet 113 that communicates with the central shaft positioning hole 111; the bayonet setting increases the compatibility and convenience of the brake disc with the frame, and the fixing effect is better.

[0030] An alternative implementation, such as Figure 3 , 4As shown: The side of the brake disc seat 12 is also provided with limiting connection holes 122 at intervals, and the side of the brake drum insert 2 is provided with a corresponding connecting hole groove structure 22. The corresponding limiting connection holes 122 and connecting hole groove structure 22 can be fixed between the two by riveting or spot welding. During welding, the molten metal enters the connecting hole groove structure 22. After cooling, the metal entering the connecting hole groove structure 22 can prevent the brake drum insert 2 from moving up and down, minimize the welding deformation of the brake drum insert 2, and further ensure the connection strength between the brake disc seat 1 and the brake drum insert 2.

[0031] An alternative implementation, such as Figure 1-5 As shown: the brake disc seat 1 is a sheet metal integral molding structure, and the bottom surface 11 of the brake disc seat is also provided with an annular convex reinforcing structure, which increases the overall strength of the bottom surface 11 of the brake disc seat; the brake drum insert 2 is made of cast iron HT200 material, which can ensure the manufacturing accuracy of the brake surface with a simple manufacturing process, and the cast iron HT200 material has the effect of stabilizing the friction coefficient and absorbing braking noise.

[0032] An alternative implementation, such as Figure 1-3 As shown: The side 12 of the brake disc seat is also provided with a sensor magnetic block mounting hole 123; by installing a sensor magnetic block in the sensor magnetic block mounting hole 123, the speed of the wheel can be measured, which can be applied to more intelligent vehicles, thereby expanding the application of brakes, and is also suitable for the simple wheel configuration of shared bicycles.

[0033] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A novel gate locking panel assembly, characterized in that: The brake disc includes a brake disc seat (1) and a brake hub insert (2) fitted inside the brake disc seat (1). The brake disc seat (1) consists of a bottom surface (11) of the brake disc seat and a side surface (12) of the brake disc seat connected to the bottom surface (11). A central shaft positioning hole (111) is provided at the center of the bottom surface (11). Multiple fixing holes (112) are provided on the outer ring surface of the central shaft positioning hole (111). Multiple locking slots (121) adapted to the locking pin are provided on the side surface (12) of the brake disc seat. The brake hub insert (2) is attached to the inside of the side surface (12) of the brake disc seat through a snap-fit ​​anti-rotation structure.

2. The novel locking gate assembly according to claim 1, characterized in that: The buckle anti-rotation structure consists of an insert positioning groove (114) provided at the connection between the bottom surface (11) and the side surface (12) of the brake disc seat, and an anti-rotation boss (21) provided at the top of one end of the brake drum insert (2).

3. The novel locking gate assembly according to claim 2, characterized in that: The bottom surface (11) of the gate seat is also provided with a bayonet (113) that communicates with the central shaft positioning hole (111).

4. The novel locking gate assembly according to claim 2, characterized in that: The side of the brake disc seat (12) is also provided with a limiting connection hole (122) at intervals, and the side of the brake hub insert (2) is provided with a corresponding connection hole groove structure (22) to the limiting connection hole (122).

5. The novel locking gate assembly according to claim 4, characterized in that: The side of the gate plate seat (12) is also provided with a sensor magnetic block mounting hole (123).

6. The novel locking gate assembly according to any one of claims 1-5, characterized in that: The gate plate seat (1) is a sheet metal integral molding structure, and the bottom surface (11) of the gate plate seat is also provided with an annular convex reinforcing structure.

7. The novel locking gate assembly according to claim 6, characterized in that: The brake hub insert (2) is made of cast iron HT200 material.

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