Easy-to-remove gray iron brake disc

Abstract

This utility model belongs to the field of brake disc technology and relates to an easily disassembled gray iron brake disc, including a hub flange and a ventilated brake disc. The hub flange has multiple bolts on its surface, each bolt threaded with a nut. The ventilated brake disc is fixedly mounted on the hub flange by bolts and nuts. The hub flange has an ejector assembly, and both the hub flange and the ventilated brake disc have stabilizing components. The hub flange has multiple threaded grooves, each threaded with a hollow bolt, and a push rod is slidably connected inside the hollow bolt. This utility model utilizes the ejector assembly to compress a spring by pressing against the push rod during the installation of the ventilated brake disc. When the ventilated brake disc is disassembled, the compressed spring extends and presses against the push rod, which pushes the ventilated brake disc outwards. This allows the hub flange and the ventilated brake disc to be separated from each other if they are stuck or jammed due to metal oxidation and corrosion, high temperature and metal fatigue, or impurity accumulation and sealing effects.

Description

Technical Field

[0001] This utility model belongs to the field of brake disc technology and relates to a gray iron brake disc that is easy to disassemble. Background Technology

[0002] Brake discs are the core components of a car's braking system. They are usually made of cast iron or alloy materials, are disc-shaped, and are fixed to the wheel hub. They rotate synchronously with the wheel. The brake discs and brake calipers work together, and the intense friction converts the vehicle's kinetic energy into heat energy, thereby slowing down or stopping the vehicle.

[0003] A Chinese utility model patent with publication number CN217898591U discloses a brake disc that is easy to disassemble, comprising a brake disc and a disassembly assembly. The brake disc includes a mounting disc, a first brake disc, and a second brake disc. The first brake disc is located on the right side of the mounting disc, and the second brake disc is mounted on the right side of the first brake disc. The disassembly assembly includes a protective plate, a sliding groove, a through groove, a fixing block, and a spring. The protective plate is located inside the first brake disc. The sliding groove is formed at the top and bottom of the protective plate. The spring is installed inside the sliding groove. The fixing block is welded to the other end of the spring. The through groove is formed at the top and bottom of the first brake disc. The fixing block passes through the sliding groove and extends through the through groove. The fixing blocks are hinged to the left and right sides of the fixing block. The two fixing blocks are bolted to the top of the first brake disc.

[0004] The existing technology has the following technical defects:

[0005] When the contact surfaces of the wheel hub flange and brake disc are in humid, high-temperature, or long-term static environments, the metals may oxidize and rust, or impurities may accumulate and fill the gaps, causing them to stick together. This sticking can cause abnormal noises when the vehicle starts, and in severe cases, it can increase the difficulty of disassembly when replacing parts. Forcibly separating them can also damage the mating surfaces of the flange or brake disc, affecting the sealing and stability of the braking system, and even indirectly threatening driving safety. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gray iron brake disc that is easy to disassemble.

[0007] The easily disassembled gray iron brake disc of this utility model includes a hub flange and a ventilated brake disc. Multiple bolts are circumferentially welded to one side surface of the hub flange, and nuts are threaded onto the outer surfaces of the bolts. The ventilated brake disc is fixedly mounted to one side surface of the hub flange by the bolts and nuts. A push-out assembly for easy disassembly of the brake disc is provided on one side surface of the hub flange. A stabilizing assembly for stable installation and positioning is provided on the outer surfaces of both the hub flange and the ventilated brake disc. Hollow bolts are threaded into multiple threaded grooves circumferentially formed on one side surface of the hub flange, and a retainer is slidably mounted on the inner surface of the hollow bolt to facilitate disengagement from the hub flange and the ventilated brake disc.

[0008] The ejection assembly includes a mounting groove located at the rear of the threaded groove. A spring installed inside the mounting groove extends and abuts against a push rod, causing the push rod to slide within the cavity of the hollow bolt and abut against one side surface of the ventilated brake disc.

[0009] The hollow bolt has a limiting groove on its inner surface, and a limiting block is welded to the outer surface of the push rod. The push rod slides within the hollow bolt's inner cavity through the limiting block and the limiting groove.

[0010] A torsion ring is welded to the front of the hollow bolt.

[0011] The stabilizing component includes positioning rod one and positioning rod two, which are symmetrically welded and installed on the concave surface of one side of the ventilated brake disc, and multiple positioning grooves are provided on the convex surface of one side of the wheel hub flange.

[0012] The positioning rod one and positioning rod two are slidably installed in the positioning groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes an ejector assembly to compress a spring by pressing against a stop rod during the installation of the ventilated brake disc. The compressed spring then extends and presses against the stop rod during disassembly of the ventilated brake disc, pushing the disc outwards. This effectively separates the wheel hub flange and the ventilated brake disc from adhesion or jamming caused by metal oxidation and corrosion, high temperatures and metal fatigue, or impurity accumulation and sealing effects. Furthermore, a torsion ring allows for easy disassembly and installation of the hollow bolt within the threaded groove. This facilitates the maintenance and replacement of the spring in the mounting groove or the stop rod in the hollow bolt, avoiding the need for complete replacement and thus saving costs. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0016] Figure 2This is a schematic diagram of the unfolded structure of an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of a ventilated brake disc in one embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the hub flange in one embodiment of the present invention.

[0019] Figure 5 This is a utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0020] Figure 6 This is a schematic diagram of the hollow plug in one embodiment of the present invention.

[0021] In the diagram: 1. Hub flange; 2. Bolt; 3. Nut; 4. Ventilated brake disc; 5. Threaded groove; 6. Mounting groove; 7. Spring; 8. Hollow bolt; 9. Torsion ring; 10. Limiting groove; 11. Abutment rod; 12. Limiting block; 13. Positioning rod one; 14. Positioning rod two; 15. Positioning groove. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-6As shown, this utility model includes a wheel hub flange 1 and a ventilated brake disc 4. Multiple bolts 2 are circumferentially welded to one side surface of the wheel hub flange 1, and nuts 3 are threaded onto the outer surfaces of the bolts 2. The ventilated brake disc 4 is fixedly mounted on one side surface of the wheel hub flange 1 using the bolts 2 and nuts 3. A push-out assembly for easy disassembly of the brake disc is provided on one side surface of the wheel hub flange 1. A stabilizing assembly for stable installation and positioning of the brake disc is provided on the outer surfaces of both the wheel hub flange 1 and the ventilated brake disc 4. Multiple threaded grooves are circumferentially formed on one side surface of the wheel hub flange 1. Hollow bolts 8 are threaded in all five sections. A slidable abutment rod 11, facilitating disengagement from the wheel hub flange 1 and the ventilated brake disc 4, is mounted on one side of the wheel hub flange 1 by multiple bolts 2 and then tightly fitted to the flange 1 by nuts 3. The hollow bolt 8 has a threaded outer structure and a hollow inner structure, allowing the abutment rod 11 to slide within the hollow structure. The ejection assembly includes a mounting groove 6 located at the rear of the threaded groove 5. A spring 7 installed inside the mounting groove 6 extends and abuts the abutment rod 11, allowing it to slide from... This allows the abutment rod 11 to slide within the inner cavity of the hollow bolt 8, abutting against one side surface of the ventilated brake disc 4. A limiting groove 10 is formed on the inner surface of the hollow bolt 8, and a limiting block 12 is welded to the outer surface of the abutment rod 11. The abutment rod 11 slides within the inner cavity of the hollow bolt 8 through the limiting block 12 and the limiting groove 10, ensuring that the abutment rod 11 will not disengage when it slides to one end of the hollow bolt 8. A torsion ring 9 is welded to the front of the hollow bolt 8, allowing the hollow bolt 8 to be manually rotated. The method involves threading the components into the threaded groove 5. The stabilizing assembly includes a first positioning rod 13 and a second positioning rod 14, which are symmetrically welded to the concave surface of one side of the ventilated brake disc 4. The convex surface of one side of the hub flange 1 has multiple positioning rods. The first positioning rod 13 and the second positioning rod 14 are slidably installed in the positioning groove 15 and are tightly fitted together, thereby enabling the ventilated brake disc 4 to be positioned and stabilized during installation. The components are then tightened and fixed by mounting the bolts 2 with nuts 3.

[0024] Working process or principle:

[0025] First, align the five through slots on the outer surface of the ventilated brake disc 4 with the bolts 2 welded to the outer surface of the wheel hub flange 1. When the ventilated brake disc 4 is pushed closer to the wheel hub flange 1 via the bolts 2, the positioning rods 13 and 14 on one side of the ventilated brake disc 4 will align with the positioning grooves 15 on one side of the wheel hub flange 1. The positioning rods 13 and 14 will slide inside the positioning grooves 15, achieving the initial positioning and tight fit of the ventilated brake disc 4. Finally, the ventilated brake disc 4 is secured with nuts 3. Before installing the ventilated brake disc 4, the hollow bolt 8 is threaded by manually rotating the torsion ring 9. Installed on the inner surface of the threaded groove 5, when the threaded groove 5 is continuously threaded into the groove, the spring 7 inside the mounting groove 6 will push against the abutment rod 11 and slide in the inner cavity of the torsion ring 9, so that one end of the abutment rod 11 extends out. When the ventilated brake disc 4 is installed, the ventilated brake disc 4 will push against the abutment rod 11 and compress the spring 7, so that the abutment rod 11 is back in the inner cavity of the hollow bolt 8, but the spring 7 is always in a compressed state. When the ventilated brake disc 4 is disassembled, the compressed spring 7 extends and pushes against the abutment rod 11, thereby separating the hub flange 1 and the ventilated brake disc 4 that are stuck or jammed due to metal oxidation and corrosion, high temperature and metal fatigue, or impurity accumulation and sealing effect.

[0026] This invention utilizes an ejector assembly to compress a spring 7 by pressing against a stop rod 11 during the installation of the ventilated brake disc 4. When the ventilated brake disc 4 is disassembled, the compressed spring 7 extends and presses against the stop rod 11, which pushes the ventilated brake disc 4 outwards. This allows for the separation of the hub flange 1 and the ventilated brake disc 4, which may be stuck or jammed due to metal oxidation and corrosion, high temperature and metal fatigue, or impurity accumulation and sealing effects. Furthermore, the hollow bolt 8 can be disassembled and installed in the threaded groove 5 via the torsion ring 9, facilitating the maintenance and replacement of the spring 7 in the mounting groove 6 or the stop rod 11 in the hollow bolt 8, thus avoiding the need for complete replacement and saving costs.

[0027] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A detachable gray iron brake disc, comprising a hub flange (1) and a ventilated brake disc (4), the surface of the hub flange (1) is provided with a plurality of bolts (2), each bolt (2) is threadedly installed with a nut (3), and the ventilated brake disc (4) is fixedly installed on the hub flange (1) through the bolts (2) and the nuts (3), characterized in that: The hub flange (1) is provided with an ejector assembly, and the hub flange (1) and the ventilated brake disc (4) are provided with stabilizing assemblies. The hub flange (1) is provided with multiple threaded grooves (5), and each threaded groove (5) is threaded with a hollow bolt (8), and a push rod (11) is slidably connected inside the hollow bolt (8).

2. The detachable ash iron brake disc according to claim 1, characterized in that: The ejection assembly includes a mounting groove (6), which is located at the rear of the threaded groove (5). A spring (7) is installed inside the mounting groove (6), and the spring (7) abuts against the push rod (11).

3. The detachable ash iron brake disc of claim 2, wherein: The hollow bolt (8) has a limiting groove (10) on its inner surface, and the abutment (11) has a limiting block (12) on its outer surface that is compatible with the limiting groove (10).

4. The detachable ash iron brake disc of claim 3, wherein: The hollow bolt (8) is provided with a torsion ring (9) at the front.

5. The detachable cast iron brake disc of any one of claims 1 to 4, wherein: The stabilizing component includes a positioning rod one (13) and a positioning rod two (14). The positioning rod one (13) and the positioning rod two (14) are symmetrically welded and installed on the ventilated brake disc (4). The hub flange (1) is provided with multiple positioning grooves (15).

6. The detachable ash iron brake disc of claim 5, wherein: The positioning rod one (13) and positioning rod two (14) are slidably connected in the positioning groove (15).

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