Brake drum with cooling device

Abstract

The brake drum with the cooling device comprises a base plate and a brake cover, a fixing pipe is fixedly communicated with the position, located at the center, in the base plate, a rotating ring is fixedly connected to the outer surface of the fixing pipe, a fan is rotationally connected to the interior of the rotating ring, fixing teeth are fixedly connected to the outer surface of the fan, and the cooling device is arranged on the base plate. A reinforcing ring is fixedly connected into the brake cover, and the inner surface of the reinforcing ring is meshed with the outer surfaces of the fixing teeth. The brake cover rotates along with the hub to drive the fan clamped with the reinforcing ring to rotate, so that the fan sucks in external air from the air inlet hole, the air is exhausted from the exhaust hole under the action of the fan after entering the interior, and heat generated by friction between the brake pad and the brake cover is brought out; the cooling effect on the brake drum is achieved, the phenomenon of thermal expansion and cold contraction caused by water spraying is avoided, and the service life of the brake drum is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drums, in particular to a brake drum with a cooling device. Background Art

[0002] The brake drum is the main component of the drum brake system, also known as the brake drum. The brake drum is installed on the car wheel hub, fixed with the tire and rotates at the same speed. When braking is needed, the friction between the brake pad and the brake drum generates resistance to achieve a deceleration effect. Most brake drums will generate a lot of heat when rubbing against the brake pads during deceleration and parking. When the heat is too high, the brakes will fail, causing traffic accidents.

[0003] The current brake drum itself does not have a cooling effect. It is usually cooled by spraying water on the brake drum through a sprinkler head. However, when the temperature of the brake drum is too high, using water for cooling may cause the brake drum to break or explode, thereby reducing the service life of the brake drum. Utility Model Content

[0004] The purpose of the utility model is to provide a brake drum with a cooling device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake drum with a cooling device, comprising a base plate and a brake cover, wherein a fixed pipe is fixedly connected inside the base plate and located at a center position, a rotating ring is fixedly connected to the outer surface of the fixed pipe, a fan is rotatably connected inside the rotating ring, and fixed teeth are fixedly connected to the outer surface of the fan, a reinforcement ring is fixedly connected inside the brake cover, and the inner surface of the reinforcement ring is meshed with the outer surface of the fixed teeth, wherein, by providing the reinforcement ring, the structural strength of the brake cover can be improved and it is difficult to deform, and by providing the fan, the brake cover can be rotated by the rotation of the fan, so that the outside air can enter the brake cover, and the temperature generated by the friction between the brake pad and the brake cover is taken away by the flowing air, and by providing the rotating ring, the fan can be positioned, and by providing the fixed teeth, the fan can be rotated with the brake cover.

[0006] As a further preferred embodiment of the present technical solution, a rotating seat is fixedly connected to the inner side of the base plate, two rotating plates are rotatably connected inside the rotating seat, brake pads are fixedly connected to the outer sides of the two rotating plates, a hydraulic cylinder is fixedly connected to the inner side of the base plate, and both ends of the hydraulic cylinder are respectively fixedly connected to the outer surfaces of the two rotating plates. By setting up the rotating plate, the brake pads can be installed and fixed, and by setting up the hydraulic cylinder, the rotating plate can be pushed to rotate to achieve a braking effect.

[0007] As a further preferred embodiment of the present technical solution, a reset spring is fixedly connected between the two rotating plates. By providing the reset spring, the two rotating plates can be reset without being affected by the thrust of the hydraulic cylinder, thereby preventing the brake pads from always contacting the inner surface of the brake cover.

[0008] As a further preferred embodiment of the present technical solution, a plurality of air inlet holes are formed through the outer surface of the brake cover, and an exhaust hole is formed through one side of the substrate. By providing the air inlet holes and the exhaust holes, air circulation can be achieved, the air flow rate can be increased, and the air can take away heat.

[0009] As a further preferred embodiment of the present technical solution, a plurality of reinforcing ribs are fixedly connected to both sides of the reinforcing ring. By providing the reinforcing ribs, the deformation resistance of the reinforcing ring can be further improved.

[0010] As a further preferred embodiment of the present technical solution, a plurality of heat sinks are fixedly connected to the outer surface of the brake cover, and the deformation resistance of the reinforcement ring can be further improved by providing reinforcement ribs.

[0011] As a further preferred embodiment of the technical solution, a plurality of fixing bolts are fixedly connected to one end of the brake cover, and outer surfaces of the plurality of fixing bolts are threadedly connected to fixing caps for fixing to the wheel hub.

[0012] The utility model provides a brake drum with a cooling device, which has the following beneficial effects:

[0013] The utility model drives the fan clamped with the reinforcing ring to rotate by the brake cover following the rotation of the wheel hub, so that the fan draws outside air in from the air inlet hole, and the air is discharged from the exhaust hole under the action of the fan after entering the interior, and the heat generated by the friction between the brake pad and the brake cover is taken out, thereby achieving the cooling effect on the brake drum, avoiding the thermal expansion and contraction phenomenon caused by water spraying, and increasing the service life of the brake drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the substrate and brake cover of the utility model;

[0016] Figure 3 It is a first exploded schematic diagram of the internal structure of the base plate and the brake cover of the utility model;

[0017] Figure 4 This is a second exploded schematic diagram of the internal structure of the substrate and the brake cover of the utility model.

[0018] In the figure: 1. base plate; 2. brake cover; 3. fixed pipe; 4. rotating ring; 5. fan; 6. fixed teeth; 7. reinforcement ring; 8. rotating seat; 9. rotating plate; 10. brake pad; 11. hydraulic cylinder; 12. return spring; 13. air inlet; 14. exhaust hole; 15. heat sink; 16. fixing bolt; 17. fixing cap; 18. reinforcing rib. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1-4 As shown, in the present embodiment, a brake drum with a cooling device comprises a base plate 1 and a brake cover 2, wherein a fixed pipe 3 is fixedly connected inside the base plate 1 and at a central position, a rotating ring 4 is fixedly connected to the outer surface of the fixed pipe 3, a fan 5 is rotatably connected inside the rotating ring 4, a fixed tooth 6 is fixedly connected to the outer surface of the fan 5, a reinforcing ring 7 is fixedly connected inside the brake cover 2, and the inner surface of the reinforcing ring 7 is meshed with the outer surface of the fixed tooth 6, wherein, by providing the reinforcing ring 7, the structural strength of the brake cover 2 can be improved and it is difficult to deform, and by providing the fan 5, the brake cover 2 can be rotated by the rotation of the fan 5, so that the outside air can enter the brake cover 2, and the temperature generated by the friction between the brake pad 10 and the brake cover 2 is taken away by the flowing air, and by providing the rotating ring 4, the fan 5 can be positioned, and by providing the fixed tooth 6, the fan 5 can be rotated with the brake cover 2.

[0021] like Figure 3 and Figure 4 As shown, a rotating seat 8 is fixedly connected to the inner side of the base plate 1, and two rotating plates 9 are rotatably connected inside the rotating seat 8. Brake pads 10 are fixedly connected to the outer sides of the two rotating plates 9. A hydraulic cylinder 11 is fixedly connected to the inner side of the base plate 1, and both ends of the hydraulic cylinder 11 are respectively fixedly connected to the outer surfaces of the two rotating plates 9. By setting the rotating plate 9, the brake pads 10 are installed and fixed. By setting the hydraulic cylinder 11, the rotating plate 9 can be pushed to rotate to achieve a braking effect.

[0022] like Figure 3 As shown, a reset spring 12 is fixedly connected between the two rotating plates 9. By providing the reset spring 12, the two rotating plates 9 can be reset without being acted upon by the thrust of the hydraulic cylinder 11, thereby preventing the brake pads 10 from always contacting the inner surface of the brake cover 2.

[0023] like Figure 1 and Figure 3As shown, a plurality of air inlet holes 13 are formed through the outer surface of the brake cover 2, and an exhaust hole 14 is formed through one side of the base plate 1. By providing the air inlet holes 13 and the exhaust holes 14, air circulation can be achieved, the air flow rate can be increased, and the air can take away heat.

[0024] like Figure 2 and Figure 4 As shown, a plurality of reinforcing ribs 18 are fixedly connected to both sides of the reinforcing ring 7. By providing the reinforcing ribs 18, the deformation resistance of the reinforcing ring 7 can be further improved.

[0025] like Figure 2 and Figure 3 As shown, a plurality of heat sinks 15 are fixedly connected to the outer surface of the brake cover 2. By providing the heat sinks 15, the heat generated inside the brake cover 2 can be quickly brought out to the outside to prevent excessive heat.

[0026] like Figure 1 and Figure 3 As shown, one end of the brake cover 2 is fixedly connected with a plurality of fixing bolts 16, and the outer surfaces of the plurality of fixing bolts 16 are all threadedly connected with fixing caps 17 for fixing to the wheel hub.

[0027] The utility model provides a brake drum with a cooling device, and the specific working principle is as follows:

[0028] During the braking process, the hydraulic cylinder 11 simultaneously pushes the two rotating plates 9 to rotate around the rotating seat 8, so that the brake pads 10 are in close contact with the brake cover 2 to decelerate. During the deceleration process, the rotation of the wheel hub drives the fan 5 connected to the reinforcement ring 7 to rotate, so that the fan 5 draws outside air in from the air inlet 13. After entering the interior, the air is discharged from the exhaust hole 14 under the action of the fan 5, and the heat generated by the friction between the brake pads 10 and the brake cover 2 is taken out, so as to cool down in real time and maintain the stability of the heat. When the rotation speed of the wheel hub is low, the heat is quickly transferred to the outside through the heat sink 15 for dissipation.

[0029] 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 brake drum with a cooling device, comprising a base plate (1) and a brake cover (2), characterized in that: A fixed pipe (3) is fixedly connected inside the base plate (1) and at a central position, a rotating ring (4) is fixedly connected to the outer surface of the fixed pipe (3), a fan (5) is rotatably connected inside the rotating ring (4), and a fixed tooth (6) is fixedly connected to the outer surface of the fan (5), and a reinforcement ring (7) is fixedly connected inside the brake cover (2), and the inner surface of the reinforcement ring (7) is meshed with the outer surface of the fixed tooth (6).

2. The brake drum with a cooling device according to claim 1, characterized in that: A rotating seat (8) is fixedly connected to the inner side of the base plate (1), two rotating plates (9) are rotatably connected inside the rotating seat (8), brake pads (10) are fixedly connected to the outer sides of the two rotating plates (9), and a hydraulic cylinder (11) is fixedly connected to the inner side of the base plate (1), and two ends of the hydraulic cylinder (11) are respectively fixedly connected to the outer surfaces of the two rotating plates (9).

3. The brake drum with a cooling device according to claim 2, characterized in that: A return spring (12) is fixedly connected between the two rotating plates (9).

4. The brake drum with a cooling device according to claim 3, characterized in that: A plurality of air inlet holes (13) are provided through the outer surface of the brake cover (2), and an air exhaust hole (14) is provided through one side of the base plate (1).

5. The brake drum with a cooling device according to claim 4, characterized in that: A plurality of reinforcing ribs (18) are fixedly connected to both sides of the reinforcing ring (7).

6. The brake drum with a cooling device according to claim 1, characterized in that: A plurality of cooling fins (15) are fixedly connected to the outer surface of the brake cover (2).

7. The brake drum with a cooling device according to claim 6, characterized in that: One end of the brake cover (2) is fixedly connected to a plurality of fixing bolts (16), and outer surfaces of the plurality of fixing bolts (16) are all threadedly connected to fixing caps (17).

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