CN213981752U - Brake drum - Google Patents

Abstract

The utility model discloses a brake drum. The brake drum comprises a circular ring and a plurality of bulges, the outer circumference of the circular ring is provided with the plurality of bulges, the axial cross sections of the bulges are trapezoidal, the upper bottoms of the bulges are connected with the outer circumference side of the circular ring, the bulges are uniformly distributed on the outer circumference of the circular ring along the circumferential direction of the circular ring, and the end faces of the bulges and the end face of the circular ring are positioned on the same horizontal plane. The utility model provides high brake drum pull intensity, radial strength, radial rigidity and joint strength, promoted heat transfer performance.

Description

Brake drum

Technical Field

The invention relates to an internal structure of a brake, in particular to a brake drum.

Background

Generally speaking, in a general brake drum design, the whole brake drum is made of the same material, and reinforcing ribs or radiating ribs are designed on the outer circle of the brake drum in consideration of heat dissipation and strength, so that the whole brake drum is heavy in weight, the dragging strength in the rotating direction and the rigidity in the diameter direction are not enough, and thus torque fluctuation caused by friction with a brake lining can generate noise to influence the comfort of a user.

Therefore, it is highly desirable to design a brake drum to overcome the drawbacks of the prior art.

Disclosure of Invention

In order to solve demand and problem among the background art, the utility model provides a brake drum, the design of this brake drum can increase pulling intensity, radial strength, radial stiffness and joint strength of brake drum to and improve the heat conductivility of brake drum.

The technical scheme of the utility model as follows:

the utility model discloses a brake drum is located between brake drum body and the brake shoe, and the brake drum includes ring and arch, and the outer circumference of ring is provided with a plurality of archs, and protruding axial cross-section is trapezoidal, and the outer circumference side of bellied upper base and ring links to each other, and bellied terminal surface is in same horizontal plane with the terminal surface of ring.

The bulges are uniformly distributed on the outer circumference of the circular ring along the circumferential direction of the circular ring.

The brake drum is centrifugally cast, and the ring and the bulges are integrally cast.

The brake drum is made of cast iron or cast steel material.

The brake drum is connected to the brake drum body in an insert casting mode.

The utility model has the advantages that:

the utility model discloses a brake drum advantage is 1 intensity height, 2 rigidity is good, 3 light in weight, 4 heat dispersion is good.

Drawings

FIG. 1 is a schematic illustration of the connection of a brake drum to a brake;

FIG. 2 is a brake drum;

in the figure: 1. the brake drum comprises a brake drum body, 2, a circular ring, 3, a brake shoe, 4 and a protrusion.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments:

as shown in figure 2, the brake drum is positioned between a brake drum body 1 and a brake shoe 3, the brake drum comprises a circular ring 2 and a plurality of protrusions 4, the outer circumference of the circular ring 2 is provided with the plurality of protrusions 4, the axial section of each protrusion 4 is trapezoidal, the upper bottom of each protrusion 4 is connected with the outer circumference side of the circular ring 2, the protrusions 4 are uniformly distributed on the outer circumference of the circular ring 2 along the circumferential direction of the circular ring 2, the strength is higher similar to the arrangement of gears, and the end faces of the protrusions 4 and the end faces of the circular ring 2 are positioned on the same horizontal plane.

The brake drum is formed by centrifugal casting, and the circular ring 2 and the bulge 4 are integrally cast.

The utility model discloses an installation as follows:

as shown in figure 1, the brake drum is in fit connection with the brake, the brake drum is connected to a brake drum body 1 in an embedding mode through a bulge 4, the brake drum body 1 is made of aluminum alloy or magnesium alloy, the brake drum is made of cast iron or cast steel, a brake shoe 3 of the drum brake applies hydraulic pressure through the brake to enable the brake shoe 3 to be tightly attached to the inner surface of the brake drum, braking torque is generated, and therefore the installation connection of the brake drum, the brake and the brake shoe is achieved.

Claims (4)

1. A brake drum, characterized by: the ring-shaped steel wire rope comprises a circular ring (2) and a plurality of protrusions (4), wherein the plurality of protrusions (4) are arranged on the outer circumference of the circular ring (2), the axial section of each protrusion (4) is trapezoidal, the upper bottom of each protrusion (4) is connected with the outer circumference side of the circular ring (2), and the end faces of the protrusions (4) and the end face of the circular ring (2) are located on the same horizontal plane;

the bulges (4) are uniformly distributed on the outer circumference of the circular ring (2) along the circumferential direction of the circular ring (2);

the circular ring (2) and the bulge (4) are integrally cast;

the brake drum is made of cast iron or cast steel material.

2. A brake drum according to claim 1, wherein: the brake drum is centrifugally cast.

3. A brake drum according to claim 1, wherein: the brake drum is positioned between the brake drum body (1) and the brake shoe (3).

4. A brake drum according to claim 1, wherein: the brake drum is connected to the brake drum body (1) in an insert casting mode.

Images