Wear-resistant brake disc

Abstract

The invention relates to the technical field of brake discs, in particular to a wear-resistant brake disc which comprises a brake disc body, a pin shaft is fixedly connected to the center of the brake disc body through a bolt, brake calipers are arranged on the outer side of the brake disc body, and brake pads are arranged on the inner sides of the brake calipers. The mode that the brake disc body and the brake calipers are combined is adopted, the brake pad is used for making contact with the surface of the upper disc body and the surface of the lower disc body to achieve braking, the friction particle containing mechanism is arranged, the structure of the dirt containing groove is optimized, friction particles are contained, and meanwhile the friction particles are prevented from falling off. The dirt containing grooves and the surface of the upper disc body are self-cleaned by means of airflow generated by rotation, so that powder particles are prevented from being retained on the brake pad to cause greater friction with the surface of the brake disc body, and the wear resistance of the brake disc body is enhanced; and in cooperation with the arrangement of the heat dissipation mechanism, heat generated by braking of the brake disc body is rapidly dissipated.

Description

Technical Field

[0001] The invention relates to the technical field of brake discs, in particular to a wear-resistant brake disc. Background Art

[0002] Wear-resistant brake discs are usually made of high-strength, high-wear-resistant materials, such as gray iron, high-carbon equivalent low alloy, vermicular graphite cast iron, ductile iron and carbon-ceramic composites. These materials have excellent mechanical properties and thermal stability, and can maintain stable braking performance during high temperature, high pressure and high-speed braking. At the same time, the structural design of wear-resistant brake discs is also crucial. Reasonable structural design can ensure that the brake disc is evenly stressed during braking, reduce thermal deformation and wear, and improve braking efficiency and safety.

[0003] In the prior art, there is an aluminum-based composite brake disc with publication number CN106812837B, which includes a disc body, wherein the disc body includes a composite structure consisting of a disc core and a friction layer covering the disc core, wherein the disc core is made of an aluminum alloy material, and the friction layer is made of a particle-reinforced aluminum-based composite material. The non-friction surface portion (disc core) of the brake disc is cast from an aluminum alloy with good plasticity, and the friction surface (friction layer) is cast from a particle-reinforced aluminum-based composite material on the basis of the disc core, ultimately forming a brake disc made of an aluminum alloy material inside and a particle-reinforced aluminum-based composite material on the surface.

[0004] In order to solve the problem of poor friction performance of existing brake discs, a friction layer is used to form a reinforced aluminum-based composite material to enhance the friction performance of the brake disc. However, in actual use, the brake disc is braked by the brake pad, generating high temperature, and after the brake disc has been used for a period of time, worn powdery matter will be retained between the brake disc and the brake pad. This powder adheres to the brake disc and can easily cause serious wear of the brake disc, affecting the braking performance.

[0005] Therefore, the present invention proposes a wear-resistant brake disc to solve the problem that after the existing brake disc has been used for a period of time, the worn powdery matter will be retained between the brake disc and the brake pad. This powder adheres to the brake disc and can easily cause serious wear of the brake disc, affecting the braking performance. Summary of the invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a wear-resistant brake disc to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a wear-resistant brake disc, comprising a brake disc body, a pin shaft is fixedly connected to the center of the brake disc body through a bolt, a brake caliper is arranged on the outer side of the brake disc body, brake pads are arranged on the inner side of the brake caliper, the inner side surfaces of the brake pads are movably abutted against the outer surfaces on both sides of the brake disc body, the brake disc body is composed of an upper disc body and a lower disc body, a sandwich cavity is formed between the upper disc body and the lower disc body, an embedding groove is formed on the inner wall of the outer side of the upper disc body, a friction particle accommodating mechanism is arranged inside the embedding groove, the friction particle accommodating mechanism includes a dirt storage groove, a heat dissipation mechanism is arranged inside the sandwich cavity, and the heat dissipation mechanism includes a windward flow disturbing component and a flow guiding and resistance reducing component.

[0008] Preferably, a forming boss is arranged on the side of the upper disc body away from the lower disc body, the forming boss and the upper disc body are of an integrally formed structure, six groups of dirt storage grooves are arranged and are circularly arrayed about the central axis of the forming boss, the six groups of dirt storage grooves are movably embedded inside the embedding groove, and the upper ends of the dirt storage grooves are open.

[0009] Preferably, a receiving slope plate is fixedly installed on the inner cavity bottom surface of the dirt storage groove, and the receiving slope plate is integrally arranged in an inclined structure.

[0010] Preferably, the position of the dirt storage groove close to the high point of the receiving slope plate is a rounded corner section, an air guiding pipe is connected through the inner wall of the rounded corner section, the input end of the air guiding pipe extends to the inner circumferential surface of the forming boss, the output end of the air guiding pipe extends into the inner cavity of the dirt storage groove, a telescopic bag is hermetically connected to the output end of the air guiding pipe, and a blowing hole is connected through the lower end of the telescopic bag.

[0011] Preferably, a restoring component is arranged on the outer side of the telescopic bag, the restoring component includes a socket ring plate fixedly installed at one end of the outer side of the telescopic bag, reset elastic pieces are fixedly connected to both ends of the socket ring plate, and the other ends of the reset elastic pieces are fixedly connected to the inner surface of the rounded corner section of the dirt storage groove.

[0012] Preferably, the windward flow disturbing component includes a windward ring, the windward ring is fixedly installed on the inner surface of the upper disc body, a windward slope opening is arranged on the lower surface of the windward ring, the windward slope opening gradually increases from the middle line of the upper disc body to the outer periphery, and a clamping groove is formed on the inner wall of the side of the windward ring away from the windward slope opening.

[0013] Preferably, the flow guiding and resistance reducing component includes a reinforcing rib plate, a flow guiding groove is formed at one end of the reinforcing rib plate, the flow guiding groove is of a "匚"-shaped empty groove structure, a heat conducting sheet is arranged inside the flow guiding groove, and a connecting block is arranged at the end of the reinforcing rib plate away from the heat conducting sheet.

[0014] Preferably, the inner surface of the connecting block is fixedly connected to a pin rod, and the outer surface of the pin rod is rotatably connected to a circumferential ring plate, the circumferential ring plate is an annular plate structure, and a strip-shaped through groove is opened on the inner wall of the circumferential ring plate, and the end of the circumferential ring plate away from the pin rod abuts against the outer surface of another group of the reinforcing rib plates.

[0015] Preferably, a flange plate is fixedly connected to the outer ring surface of the lower disk body, and heat dissipation holes are opened on the inner wall of the flange plate. A rib ring plate is fixedly installed on the inner surface of the lower disk body. The rib ring plates are provided in multiple groups and distributed in a circular array about the central axis of the lower disk body, and an air duct is formed between two adjacent groups of rib ring plates.

[0016] Preferably, a reinforcing boss is fixedly connected to the lower outer surface of the rib ring plate, the height of the reinforcing boss is consistent with the height of the heat dissipation hole, and a reserved groove is opened on the upper surface of the rib ring plate, the inner side of the reserved groove is adapted to the connecting block.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a wear-resistant brake disc, which adopts a method of combining a brake disc body and a brake caliper, and uses brake pads to contact the surfaces of an upper disc body and a lower disc body to achieve braking. The structure of a scale holding groove is optimized by using a friction particle containing mechanism to achieve the accommodation of friction particles. At the same time, the scale holding groove and the surface of the upper disc body are self-cleaned by generating airflow through rotation, so as to avoid that powder particles are retained on the brake pad and the surface of the brake disc body to cause a greater degree of friction, thereby enhancing the wear resistance of the brake disc body; with the setting of the heat dissipation mechanism, the heat generated by braking of the brake disc body can be quickly dissipated, the ventilation duct can be optimized, the braking effect and performance of the brake disc can be improved, and the vehicle safety can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The brake caliper of the present invention is a schematic diagram of the braking state of the brake disc body. Figure 1 ; Figure 2 The brake caliper of the present invention is a schematic diagram of the braking state of the brake disc body. Figure 2 ; Figure 3 It is a schematic diagram of the disassembled structure of the brake disc body and the brake caliper of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A; Figure 5 It is a schematic diagram of the disassembled structure of the brake disc body of the present invention; Figure 6 For the present invention Figure 5A schematic diagram of the enlarged structure at B; Figure 7 It is a bottom view structural schematic diagram of the upper plate of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at C; Fig. 9 It is a schematic diagram of the connection structure of the windward spoiler component and the flow guide and drag reduction component of the present invention; Fig.10 For the present invention Fig. 9 A schematic diagram of the structure at D of FIG. Fig.11 It is a schematic diagram of the cross-sectional structure of the upper plate body of the present invention; Fig.12 For the present invention Fig.11 A schematic diagram of the structure at E of FIG. Fig.13 It is a schematic diagram of a half-section structure of the upper plate body and the forming boss of the present invention; Fig.14 For the present invention Fig.13 A schematic diagram of the structure at F of FIG. Fig.15 It is a schematic diagram of the separation structure of the receiving slope plate and the scale containing tank of the present invention.

[0019] In the figure: 1, brake disc body; 11, pin shaft; 12, brake caliper; 121, brake pad; 2, upper disc body; 21, molded boss; 20, embedded groove; 22, scale holding groove; 200, expansion hole; 221, air duct; 2211, wind hood; 222, telescopic bag; 2221, sleeve ring plate; 2222, blowing hole; 223, receiving slope plate; 23, windward ring; 230, windward slope Mouth; 2300, card-mounting groove; 24, reinforcing rib plate; 240, guide groove; 2400, heat conducting plate; 2401, piston hole; 2402, push plug rod; 241, pin rod; 25, circumferential ring plate; 250, strip through groove; 3, lower plate; 10, interlayer cavity; 30, air duct; 31, flange plate; 310, heat dissipation hole; 32, convex rib ring plate; 321, reinforcement boss; 320, reserved groove. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] For example, see Figure 1-15 The present invention provides a technical solution: a wear-resistant brake disc, comprising a brake disc body 1, the center of the brake disc body 1 is fixedly connected with a pin shaft 11 by bolts, a brake caliper 12 is arranged on the outside of the brake disc body 1, a brake pad 121 is arranged on the inside of the brake caliper 12, the inner side of the brake pad 121 is movably abutted against the outer surfaces of both sides of the brake disc body 1, the brake disc body 1 is composed of an upper disc body 2 and a lower disc body 3, an interlayer cavity 10 is formed between the upper disc body 2 and the lower disc body 3, an embedding groove 20 is opened on the outer inner wall of the upper disc body 2, a friction particle accommodating mechanism is arranged on the inner side of the embedding groove 20, the friction particle accommodating mechanism includes a scale accommodating groove 22, a heat dissipation mechanism is arranged on the inner side of the interlayer cavity 10, and the heat dissipation mechanism includes a windward spoiler component and a flow guide and resistance reduction component; In this embodiment, the brake disc adopts a combination of a brake disc body 1 and a brake caliper 12, and utilizes a brake pad 121 to achieve braking by contacting the surface of the upper disc body 2 and the lower disc body 3. The structure of the scale holding groove 22 is optimized by utilizing the setting of a friction particle containing mechanism, so that while accommodating the friction particles, the scale holding groove 22 and the surface of the upper disc body 2 are self-cleaned by generating airflow through rotation, thereby avoiding that powder particles are retained on the brake pad 121 and cause a greater degree of friction between the surface of the brake disc body 1, thereby enhancing the wear resistance of the brake disc body 1; in conjunction with the setting of a heat dissipation mechanism, the heat generated by braking of the brake disc body 1 can be quickly dissipated, the ventilation duct can be optimized, the braking effect and performance of the brake disc can be improved, and the vehicle safety can be improved.

[0022] Embodiment 2, refer to the attached Figure 1-15 On the basis of the first embodiment, in order to achieve the accommodation of powder particles generated by the friction braking of the brake pad 121 on the brake disc body 1: a molding boss 21 is provided on the side of the upper disc body 2 away from the lower disc body 3, and the molding boss 21 and the upper disc body 2 are an integral molding structure, and six groups of dirt containing grooves 22 are provided and are distributed in a circular array about the central axis of the molding boss 21, and the six groups of dirt containing grooves 22 are movably embedded in the inner side of the embedding groove 20, and the upper end of the dirt containing groove 22 is set to be an opening; a receiving ramp plate 223 is fixedly installed on the bottom surface of the inner cavity of the dirt containing groove 22, and the receiving ramp plate 223 is set as an inclined structure as a whole; an expansion hole 200 is opened on the inner side of the molding boss 21 and is adapted to the dirt containing groove 22; In this embodiment, multiple groups of scale holding grooves 22 are installed by setting the embedded grooves 20, and the receiving ramps 223 installed on the bottom surface of the inner cavity of the scale holding grooves 22 are used to receive the powder particles. The receiving ramps 223 are set to be gradually inclined toward the periphery, such as Fig.11As shown, multiple groups of scale containing grooves 22 form a spiral groove structure, which can use centrifugal force to throw out debris, and through the inclined receiving ramp plate 223, it can pass through a certain inclined slope to fully receive the energy of the air flow in and out of the expansion hole 200, thereby accelerating the accommodation of powder particles.

[0023] Embodiment 3, refer to the attached Figure 1-15 On the basis of the second embodiment, in order to further clean the dirt contained in the dirt holding tank 22: the dirt holding tank 22 is set as a rounded section near the high point of the receiving slope plate 223, and the inner wall of the rounded section is connected with an air duct 221, the input end of the air duct 221 extends to the inner annular surface of the molding boss 21, and the output end of the air duct 221 extends to the inner cavity of the dirt holding tank 22, and the output end of the air duct 221 is sealed and connected with a telescopic bag 222, and the telescopic bag 222 The lower end of the bellows 222 is connected with a blowing hole 2222; a recovery assembly is arranged on the outside of the bellows 222, and the recovery assembly includes a sleeve ring plate 2221 fixedly installed on one end of the outside of the bellows 222, and the two ends of the sleeve ring plate 2221 are fixedly connected with reset springs, and the other end of the reset springs is fixedly connected to the inner surface of the rounded section of the scale holding groove 22; an air collecting cover 2211 is arranged at the input end of the air duct 221, and the air collecting cover 2211 is a bucket-shaped structure narrowed inwardly; In this embodiment, if Figure 11-Figure 15 As shown, by opening an open expansion hole 200 on the inner side of the forming boss 21, it can be ensured that the airflow generated during rotation enters the interior of the air duct 221 through the expansion hole 200, where the airflow is gathered by the air collecting hood 2211 and discharged through the narrowed outlet of the air collecting hood 2211, thereby accelerating the flow rate of the airflow. At this time, the airflow enters the interior of the telescopic bag 222 through the air duct 221, and the telescopic bag 222 is stretched by the gas flow. The airflow is discharged through the blowing hole 2222, thereby achieving rapid cleaning of the powder particles deposited on the inclined surface of the receiving ramp plate 223. The setting of the sleeve ring plate 2221 and the reset spring can help the telescopic bag 222 to be quickly reset when not being sprayed by the airflow, so that the telescopic bag 222 retracts.

[0024] Embodiment 4, refer to the attached Figure 1-15, on the basis of Embodiment III, in order to achieve the heat dissipation effect during the braking of the brake disc body 1: The windward flow disturbing assembly includes a windward ring 23, and the windward ring 23 is fixedly installed on the inner surface of the upper disc body 2. The lower surface of the windward ring 23 is provided with a windward groove 230, and the windward groove 230 gradually increases from the center line of the upper disc body 2 to the periphery. A clamping groove 2300 is formed on the inner wall of the windward ring 23 on the side away from the windward groove 230; The flow guiding and resistance reducing assembly includes a reinforcing rib plate 24. One end of the reinforcing rib plate 24 is provided with a flow guiding groove 240. The flow guiding groove 240 is in a "C"-shaped hollow groove structure. A heat conducting sheet 2400 is arranged inside the flow guiding groove 240. The end of the reinforcing rib plate 24 away from the heat conducting sheet 2400 is provided with a connecting block; A pin rod 241 is fixedly connected to the inner surface of the connecting block. The outer surface of the pin rod 241 is rotatably connected with a circumferential ring plate 25. The circumferential ring plate 25 is in an annular plate structure, and a strip-shaped through groove 250 is formed on the inner wall of the circumferential ring plate 25. The end of the circumferential ring plate 25 away from the pin rod 241 abuts against the outer surface of another group of reinforcing rib plates 24; The reinforcing rib plate 24 is in a strip-shaped plate structure. A circular piston hole 2401 is formed in the inner cavity of the reinforcing rib plate 24. A push rod 2402 is movably connected to the inner surface of the piston hole 2401. The outer surface of the push rod 2402 is movably abutted against the outer surface of the circumferential ring plate 25; In this embodiment, as Figure 7-10 shown, by installing the windward rings 23 arranged in an array on the inner top surface of the upper disc body 2, the windward groove 230 is arranged at a position close to the center end of the windward ring 23 here. By means of the lowered position of the windward groove 230, it is convenient for the cooling air flow entering between the upper disc body 2 and the lower disc body 3 to enter the inner ring of the windward ring 23 along the inclined surface, so that an air vortex can be formed to disturb the internal air, thereby expanding the heat dissipation area and accelerating the cooling efficiency of the upper disc body 2 and the lower disc body 3, and avoiding the situation that the heat cannot be quickly dissipated due to the high temperature caused by braking, resulting in braking wear; It should be noted that when the upper disc body 2 generates heat during braking, the heat is transferred to the reinforcing rib plate 24, and the heat is conducted through the heat conducting sheet 2400. At this time, the gas in the piston hole 2401 expands due to heat, and then drives the end of the push rod 2402 away from the heat conducting sheet 2400 to move, pushing the push rod 2402 outwards. Refer to Fig.10 shown, the ejected push rod 2402 pushes the circumferential ring plate 25 to a certain extent. At this time, the circumferential ring plate 25 opens outwards at a certain angle, so that the sides of the upper disc body 2 and the lower disc body 3 can be further opened, increasing the heat dissipation area and accelerating the air flow effect.

[0025] Embodiment V, refer to the attached Figure 1-15On the basis of the fourth embodiment, in order to achieve the stability of the upper disk body 2 and the lower disk body 3 when braked by the brake pad 121: the outer ring surface of the lower disk body 3 is fixedly connected with a flange plate 31, and the inner wall of the flange plate 31 is provided with a heat dissipation hole 310, and the inner surface of the lower disk body 3 is fixedly installed with a rib ring plate 32, and the rib ring plates 32 are provided with multiple groups and are distributed in a circular array about the central axis of the lower disk body 3, and an air duct 30 is formed between two adjacent groups of rib ring plates 32; the lower outer surface of the rib ring plate 32 is fixedly connected with a reinforcement boss 321, and the height of the reinforcement boss 321 is consistent with the height of the heat dissipation hole 310, and the upper surface of the rib ring plate 32 is provided with a reserved groove 320, and the inner side of the reserved groove 320 is adapted to the connection block; In this embodiment, if Figure 5-Figure 6 As shown, a plurality of groups of rib ring plates 32 are evenly distributed to form a spiral shape. At this time, an air duct 30 is formed between two adjacent groups of rib ring plates 32, which ensures air circulation to the greatest extent and reduces heat attenuation. In addition, through the mutual cooperation of the rib ring plates 32 and the reinforcing bosses 321, the structural strength of the lower disc body 3 is ensured, and its heat dissipation effect is further enhanced, thereby improving the braking effect of the brake disc.

[0026] Embodiment 6, refer to the attached Figure 1-15 On the basis of the fifth embodiment, the present invention further proposes a method for using a wear-resistant brake disc, comprising the following steps: Step 1: Installation preparation: Ensure that the brake disc body 1 is correctly installed on the pin 11 of the vehicle and fixed with appropriate fasteners. Check whether the brake disc body 1 and its related components are intact, and ensure that there are no cracks, wear or other damage. Ensure that the oil or air pressure of the brake system is within the normal range. Step 2, starting and braking: Start the vehicle and ensure that the brake disc body 1 starts to rotate with the wheel. When braking is required, gently step on the brake pedal to make the brake pad 121 contact with the friction surface of the brake disc body 1, thereby generating braking force. Adjust the stepping force of the brake pedal as needed to control the deceleration and parking of the vehicle; Step 3: Utilize the self-cleaning function: The structure of the dirt holding groove 22 on the brake disc body 1 will utilize the airflow generated by the rotation to clean the friction surface and the interior, and the powder particles and debris will be thrown out or carried away by the airflow through the air duct 221 and other channels, thereby preventing them from being retained on the friction surface and causing additional wear; Step 4: Heat dissipation and cooling: The brake disc body 1 as a whole will generate heat during the braking process. At this time, the heat dissipation mechanism will start to work, and the windward spoiler component will guide the airflow into the interlayer cavity 10 to form an air vortex, thereby expanding the heat dissipation area and accelerating the heat dissipation. The flow guide and drag reduction component will further adjust the flow path of the airflow, improve the heat dissipation efficiency, and reduce thermal attenuation.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant brake disc, comprising a brake disc body (1), the center of the brake disc body (1) being fixedly connected to a pin shaft (11) by bolts, a brake caliper (12) being arranged on the outer side of the brake disc body (1), a brake pad (121) being arranged on the inner side of the brake caliper (12), the inner side of the brake pad (121) being movably abutted against the outer surfaces of both sides of the brake disc body (1), characterized in that: The brake disc body (1) is composed of an upper disc body (2) and a lower disc body (3). A sandwich cavity (10) is formed between the upper disc body (2) and the lower disc body (3). An embedding groove (20) is formed on the outer inner wall of the upper disc body (2). A friction particle accommodating mechanism is arranged inside the embedding groove (20). The friction particle accommodating mechanism includes a dirt-holding groove (22). A heat dissipation mechanism is arranged inside the sandwich cavity (10). The heat dissipation mechanism includes a windward flow disturbing component and a flow guiding and resistance reducing component.

2. The wear-resistant brake disc according to claim 1, characterized in that: A forming boss (21) is arranged on the side of the upper disc body (2) away from the lower disc body (3). The forming boss (21) and the upper disc body (2) are of an integrally formed structure. Six groups of the dirt-holding grooves (22) are arranged and are circularly arrayed about the central axis of the forming boss (21). The six groups of dirt-holding grooves (22) are movably embedded inside the embedding groove (20). The upper end of the dirt-holding groove (22) is open.

3. The wear-resistant brake disc according to claim 2, characterized in that: A receiving slope plate (223) is fixedly installed on the inner cavity bottom surface of the dirt-holding groove (22). The receiving slope plate (223) is integrally arranged in an inclined structure.

4. The wear-resistant brake disc according to claim 3, characterized in that: The dirt-holding groove (22) is provided with a rounded corner section near the high point of the receiving slope plate (223). An air guiding pipe (221) is connected through the inner wall of the rounded corner section. The input end of the air guiding pipe (221) extends to the inner circumferential surface of the forming boss (21). The output end of the air guiding pipe (221) extends into the inner cavity of the dirt-holding groove (22). The output end of the air guiding pipe (221) is hermetically connected with an expansion bag (222). A blowing hole (2222) is connected through the lower end of the expansion bag (222).

5. The wear-resistant brake disc according to claim 4, characterized in that: A restoring component is arranged on the outer side of the expansion bag (222). The restoring component includes a socket ring plate (2221) fixedly installed at one outer end of the expansion bag (222). Two ends of the socket ring plate (2221) are fixedly connected with restoring elastic pieces. The other ends of the restoring elastic pieces are fixedly connected with the inner surface of the rounded corner section of the dirt-holding groove (22).

6. The wear-resistant brake disc according to claim 1, characterized in that: The windward flow disturbing component includes a windward ring (23). The windward ring (23) is fixedly installed on the inner surface of the upper disc body (2). A windward slope opening (230) is arranged on the lower surface of the windward ring (23). The windward slope opening (230) gradually increases outwards along the middle line of the upper disc body (2). A clamping groove (2300) is formed on the inner wall of the windward ring (23) away from the windward slope opening (230).

7. The wear-resistant brake disc according to claim 1, characterized in that: The flow guiding and resistance reducing component includes a reinforcing rib plate (24). A flow guiding groove (240) is formed at one end of the reinforcing rib plate (24). The flow guiding groove (240) is in a "C"-shaped empty groove structure. A heat conducting sheet (2400) is arranged inside the flow guiding groove (240). A connecting block is arranged at the end of the reinforcing rib plate (24) away from the heat conducting sheet (2400).

8. The wear-resistant brake disc according to claim 7, characterized in that: The inner surface of the connecting block is fixedly connected to a pin rod (241), and the outer surface of the pin rod (241) is rotatably connected to a circumferential ring plate (25). The circumferential ring plate (25) is an annular plate-shaped structure, and a strip-shaped through groove (250) is provided on the inner wall of the circumferential ring plate (25). One end of the circumferential ring plate (25) away from the pin rod (241) abuts against the outer surface of another group of reinforcing rib plates (24).

9. The wear-resistant brake disc according to claim 7, characterized in that: The outer ring surface of the lower disk body (3) is fixedly connected to a flange plate (31), the inner wall of the flange plate (31) is provided with heat dissipation holes (310), and the inner side surface of the lower disk body (3) is fixedly mounted with a rib ring plate (32), the rib ring plates (32) are provided in a plurality of groups and are distributed in a circular array about the central axis of the lower disk body (3), and an air duct (30) is formed between two adjacent groups of the rib ring plates (32).

10. The wear-resistant brake disc according to claim 9, characterized in that: A reinforcing boss (321) is fixedly connected to the lower outer surface of the rib ring plate (32), the height of the reinforcing boss (321) being consistent with the height of the heat dissipation hole (310), and a reserved groove (320) is provided on the upper surface of the rib ring plate (32), the inner side of the reserved groove (320) being adapted to the connection block.

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