Brake fender with heat dissipation hole structure, brake and automobile

Abstract

The utility model belongs to the field of off-road vehicle type braking systems, and particularly relates to a brake fender with a heat dissipation hole structure, a brake and an automobile, the brake fender comprises a fender body which is in a sector ring shape and is coaxially arranged on a driving shaft matched with the brake body, and the axis of the driving shaft is perpendicular to the running direction of the automobile; the fender body sector away from the brake body serves as the front face, the upper portion of the front face of the fender body protrudes to form a protruding portion with a slope face, the gradient is 20 degrees + / -4 degrees, heat dissipation holes are formed in the slope face, and openings of the heat dissipation holes face the automobile running direction, it can be guaranteed that more airflow enters the heat dissipation holes, heat dissipation is conducted on the brake body, and the service life of the brake body is prolonged. The temperature of the brake disc can be effectively reduced, the heat fading performance of the friction plate is improved, and the safety and reliability of a brake system are improved.

Description

Technical Field

[0001] The utility model belongs to the field of braking systems for off-road vehicles, and particularly relates to a brake mudguard with a heat dissipation hole structure, a brake and an automobile. Background Art

[0002] The brake mudguard, as the name implies, is mainly used to prevent dirt and moisture from entering the brake system. However, during high-intensity braking, the temperature of the brake will rise rapidly, affecting braking performance and safety.

[0003] In the prior art, the mudguard with poor heat dissipation performance cannot effectively reduce the temperature of the brake, which may lead to overheating, the brake fluid will boil, and the braking force will be lost. Seriously, it may also affect the driving safety and stability of the vehicle. Summary of the Invention

[0004] In view of the above problems, the utility model provides a brake mudguard with a heat dissipation hole structure, which includes a mudguard body, which is in a fan-shaped ring shape and is coaxially installed on a drive shaft cooperating with the brake body, and the axis of the drive shaft is perpendicular to the driving direction of the vehicle.

[0005] Taking the fan surface of the mudguard body away from the brake body as the front, a convex part with a slope surface is formed on the upper part of the front of the mudguard body, and the slope is 20°±4. Heat dissipation holes are opened on the slope surface, and the orifices of the heat dissipation holes face the driving direction of the vehicle.

[0006] Preferably, the convex part is a trapezoidal boss, and the height of the trapezoidal boss is 4mm±1. The length direction of the trapezoidal boss is parallel to the radial direction of the mudguard body, and the inclined surface of the trapezoidal boss facing the driving direction of the vehicle is the slope surface.

[0007] Preferably, the heat dissipation holes are kidney-shaped holes, and the hole length is parallel to the length direction of the trapezoidal boss. The central line of the kidney-shaped hole forms an angle of 90°±10 with the horizontal direction.

[0008] Preferably, a concave part is formed in the lower part of the front of the mudguard body, and a slideway is formed by inward concavity along the circumference on the fan surface of the mudguard body. The slideway leads to the concave part, and the gravel flows from the slideway to the concave part and leaks out of the mudguard body.

[0009] Preferably, a plurality of ventilation holes are opened on the fan surface of the mudguard body. The ventilation holes are in a long strip shape, and the ventilation holes correspond one by one to the heat-generating parts of the brake body.

[0010] Preferably, the knuckle of the brake body is installed on the drive shaft through a hub bearing. The mudguard body is coaxially arranged with the drive shaft and is installed on the knuckle to protect the brake body.

[0011] Preferably, at least three mounting holes are arranged along the axial direction on the fan surface of the fender body. Bolts pass through the mounting holes and are connected to the screw holes on the steering knuckle.

[0012] Preferably, the fender body is made of galvanized magnesium aluminum and has a thickness of 0.8mm ± 1.

[0013] A brake uses the above-mentioned brake fender to protect the brake body.

[0014] A vehicle uses the above-mentioned brake.

[0015] Beneficial effects

[0016] 1. In the present utility model, a convex part with a slope surface is provided on the fender body, and heat dissipation holes are opened on the slope surface, and the orifices of the heat dissipation holes face the vehicle driving direction. When the vehicle is driving, natural air intake occurs, and the air flows from the heat dissipation holes to the brake body, taking away heat. And the slope is 20° ± 4, which can well ensure the balance between the wind resistance of the convex part and the air intake volume, ensure that more airflows enter the heat dissipation holes, dissipate heat from the brake body. After the AMS test, for the traditional fender, the temperature of the brake disc reaches 604.3 °C after 10 consecutive brakings, while the temperature of the brake disc in this application is only 592.8 °C after 10 consecutive brakings. It can be seen that there is a significant improvement in heat dissipation performance, which can effectively reduce the temperature of the brake disc, improve the heat fade performance of the friction plate, and improve the safety and reliability of the braking system.

[0017] 2. The fender body is integrally formed. In a sense, the convex part can be a convex platform in any form, such as square or convex arc. However, obviously, a square will cause a large wind resistance and is easily damaged when colliding with foreign objects such as stones, while the convex arc can have smaller orifices for the heat dissipation holes, which is not conducive to the inflow of air, and the trapezoidal convex platform takes into account the advantages of both.

[0018] 3. Further, the kidney-shaped hole also ensures its largest orifice and is convenient for processing. Other features and advantages of the present utility model will be described in the subsequent description, and some of them will become obvious from the description or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the description and the drawings. Description of the drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Shows the schematic connection diagram of the fender body, brake body and drive shaft in the embodiment of the present utility model;

[0021] Figure 2 Shows the schematic diagram of the fender body in the embodiment of the present utility model;

[0022] Figure 3 Shows the schematic diagram of the fender body placed horizontally in the embodiment of the present utility model.

[0023] In the figure,

[0024] 1. Fender body; 10. Mounting holes; 11. Heat dissipation holes; 12. Ventilation holes;

[0025] A. Convex part; B. Concave part; C. Slideway;

[0026] 2. Drive shaft;

[0027] 3. Steering knuckle. Specific embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figure 1 , Figure 1 , which shows the schematic connection diagram of the fender body, brake body and drive shaft in the embodiment of the present utility model; it can be clearly seen from this schematic diagram that a brake fender with a heat dissipation hole structure includes a fender body 1, which is fan-shaped. The steering knuckle 3 of the brake body is installed on the drive shaft 2 through a hub bearing. The fender body 1 is coaxially arranged with the drive shaft and installed on the steering knuckle 3 to protect the brake body.

[0030] Refer to Figure 2 , Figure 2 , which shows the schematic diagram of the fender body in the embodiment of the present utility model; it can be clearly seen from this schematic diagram that at least three mounting holes 10 are arranged along the axial direction on the fan surface of the fender body 1. Bolts pass through the mounting holes 10 and are connected to the screw holes on the steering knuckle 3, and the axis of the drive shaft 2 is perpendicular to the driving direction of the vehicle;

[0031] Refer to Figure 3 , Figure 3The schematic diagram of the mudguard body placed horizontally in the embodiment of the present utility model is shown; in this schematic diagram, it can be clearly seen that taking the fan surface of the mudguard body 1 away from the brake body as the front, a convex part A with a slope surface is formed above the front of the mudguard body 1, and the slope is 20° ± 4. Heat dissipation holes 11 are opened on the slope surface, and the orifices of the heat dissipation holes 11 face the driving direction of the vehicle.

[0032] In the present utility model, by providing a convex part A with a slope surface on the mudguard body 1, heat dissipation holes 11 are opened on the slope surface. The heat dissipation holes are 19 mm away from the outer edge of the mudguard body 1, and the orifices of the heat dissipation holes 11 face the driving direction of the vehicle. During the driving process of the vehicle, natural air intake occurs, and the air flows from the heat dissipation holes 11 to the brake body, taking away heat. Moreover, the slope is 20° ± 4, which can well ensure the balance between the wind resistance of the convex part A and the air intake volume, ensuring that more airflows enter the heat dissipation holes 11 to dissipate heat from the brake body.

[0033] The convex part A is a trapezoidal boss, and the height of the trapezoidal boss is 4 mm ± 1. The length direction of the trapezoidal boss is parallel to the radial direction of the mudguard body 1, and the inclined surface of the trapezoidal boss facing the driving direction of the vehicle is the slope surface.

[0034] An indentation B is formed concave downward on the front of the mudguard body 1, and a slideway is formed concave inward along the circumference on the fan surface of the mudguard body 1. The slideway leads to the indentation B, and the sand and gravel flow from the slideway to the indentation B and leak out of the mudguard body 1.

[0035] A plurality of ventilation holes 12 are opened on the fan surface of the mudguard body 1. The ventilation holes 12 are in strip shape, and the ventilation holes 12 correspond one by one to the heat - generating parts of the brake body.

[0036] The mudguard body 1 is integrally formed. The mudguard body 1 is made of galvanized magnesium aluminum material, and the thickness is 0.8 mm ± 1. In a sense, the convex part A can be a convex platform in any form, such as square or convex arc shape. However, obviously, the square will cause greater wind resistance and is easily damaged when colliding with foreign objects such as stones, etc. And the convex arc shape can only have relatively small orifices for the heat dissipation holes 11, which is not conducive to the inflow of air. While the trapezoidal boss takes into account the advantages of both.

[0037] The heat dissipation holes 11 are kidney - shaped holes, and the hole length is parallel to the length direction of the trapezoidal boss. The included angle between the center line of the kidney - shaped hole and the horizontal direction is 90° ± 10.

[0038] Moreover, the kidney - shaped hole also ensures its largest orifice and is convenient for processing.

[0039] The present utility model also claims to protect a brake, which uses the above - mentioned brake mudguard to protect the brake body.

[0040] The present utility model also claims to protect a vehicle, which uses the above - mentioned brake.

[0041] Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A brake fender with a heat dissipation hole structure, characterized in that: It comprises a fender body (1) which is in a fan-shaped ring shape and is coaxially mounted on a drive shaft (2) matched with the brake body, and the axis of the drive shaft (2) is perpendicular to the driving direction of the vehicle; The fan surface of the fender body (1) away from the brake body is the front side, and the upper part of the front side of the fender body (1) is raised to form a convex part (A) with a slope surface, and the slope is 20°±4, and the slope surface is provided with a heat dissipation hole (11), and the opening of the heat dissipation hole (11) faces the driving direction of the vehicle.

2. The brake fender with a heat dissipation hole structure according to claim 1, characterized in that: The convex part (A) is a trapezoidal boss, and the height of the trapezoidal boss is 4 mm ± 1, the length direction of the trapezoidal boss is parallel to the radial direction of the fender body (1), and the inclined surface of the trapezoidal boss facing the driving direction of the vehicle is the slope surface.

3. The brake fender with a heat dissipation hole structure according to claim 2, characterized in that: The heat dissipation hole (11) is a waist-shaped hole, and the hole length is parallel to the length direction of the trapezoidal boss, and the angle between the center line of the waist-shaped hole and the horizontal direction is 90°±10.

4. The brake fender with a heat dissipation hole structure according to claim 1, characterized in that: The front lower part of the fender body (1) is concave to form a concave portion (B), and the upper fan surface of the fender body (1) is concave inward along the circumferential direction to form a slideway (C), the slideway (C) leads to the concave portion (B), and gravel flows from the slideway (C) to the concave portion (B) and leaks out of the fender body (1).

5. The brake fender with a heat dissipation hole structure according to claim 1, characterized in that: A plurality of ventilation holes (12) are provided on the fan surface of the fender body (1), the ventilation holes (12) are in the shape of long strips, and the ventilation holes (12) correspond one to one with the heating points of the brake body.

6. The brake fender with a heat dissipation hole structure according to claim 1, characterized in that: The steering knuckle (3) of the brake body is mounted on the drive shaft (2) via a wheel hub bearing, and the fender body (1) is coaxially arranged with the drive shaft and mounted on the steering knuckle (3) to protect the brake body.

7. The brake fender with a heat dissipation hole structure according to claim 6, characterized in that: At least three mounting holes (10) are arranged in the axial direction on the sector surface of the fender body (1), and bolts pass through the mounting holes (10) and are connected to the screw holes on the steering knuckle (3).

8. The brake fender with a heat dissipation hole structure according to claim 1, characterized in that: The fender body (1) is made of galvanized magnesium aluminum and has a thickness of 0.8 mm ± 1.

9. A brake, characterized in that: The brake fender described in any one of claims 1 to 8 is used to protect the brake body.

10. An automobile, characterized in that: The automobile uses the brake described in claim 9.

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