Brake drum with noise reduction and heat dissipation functions

Abstract

The brake drum with the noise reduction and heat dissipation functions comprises a brake drum body, a connecting hole is formed in the center of the front face of the brake drum body, heat dissipation holes distributed at equal intervals are formed in the circumferential outer wall of the brake drum body, and reinforcing ribs are welded to the positions, close to the positions between every two sets of heat dissipation holes, of the brake drum body. Each heat dissipation hole is composed of a small-hole-diameter bottom end, a wave structure face and a large-hole-diameter top end, the large-hole-diameter top ends are arranged at the tops of the heat dissipation holes, the small-hole-diameter bottom ends are arranged at the bottoms of the heat dissipation holes, the wave structure faces are arranged in the heat dissipation holes, and heat conduction pieces distributed at equal intervals are welded to the middle section of the brake drum body. Due to the arrangement of the wave structural surfaces in the heat dissipation holes, when wind passes through the heat dissipation holes, linear propagation of airflow is effectively hindered, generation of wind noise is reduced, meanwhile, the airflow consumes energy after being reflected and rubbed for multiple times, vibration can be effectively reduced, and generation of noise can be reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of brake drums, in particular to a brake drum with noise reduction and heat dissipation functions. BACKGROUND

[0002] A brake drum is an important component of an automobile braking system, usually installed on a wheel, used to transmit braking force to achieve vehicle deceleration and parking. Brake drums first appeared in automobile braking systems in the late 19th century, originating from the steam locomotive era, replacing traditional hand brakes and foot brakes to improve braking efficiency and safety. With the development of the automobile industry, brake drums have gradually evolved into one of the important components of modern automobile braking systems, working with brake pads and brake fluid to achieve braking function. Brake drums generate resistance by rubbing with brake pads, converting kinetic energy into heat energy to achieve vehicle deceleration and parking. With the advancement and development of technology, the materials, design and manufacturing process of brake drums are constantly improving to improve braking efficiency, reduce noise and prolong service life. Today, brake drums have become an indispensable part of automobile braking systems, providing important safety protection for vehicle travel.

[0003] After searching, the utility model of Chinese patent publication CN220890886U discloses a high-efficiency heat dissipation drum brake, belonging to the field of brakes. It solves the problem of poor heat dissipation effect of existing brakes. The high-efficiency heat dissipation drum brake comprises a brake chassis, a brake drum, a brake leading shoe and a brake slave shoe. The inner wall of the brake drum is provided with a heat dissipation mechanism for improving the internal heat dissipation effect. The brake chassis and the brake drum cooperate to form an installation cavity for installing the brake leading shoe and the brake slave shoe. The brake leading shoe is provided with a plurality of heat dissipation through holes for rapid heat dissipation. The heat dissipation mechanism comprises an installation block located at the center of the front end face of the brake drum, a plurality of air guide ribs for accelerating the flow of air inside the brake drum, and a plurality of ventilation holes provided on the brake drum for improving the heat dissipation effect. The high-efficiency heat dissipation drum brake in the above-mentioned utility model has the following disadvantages.

[0004] Although the above-mentioned device can effectively realize the rapid flow of air inside the brake drum, improve the air flow rate and achieve rapid heat dissipation through the cooperation of the heat dissipation mechanism, ventilation holes, heat dissipation through holes and flow holes, the setting of the heat dissipation through holes, ventilation holes and air guide holes in the overall structure makes the brake drum produce a lot of noise when working, making the driving environment noisy, reducing the driver's perception of potential dangers and increasing the risk of accidents. UTILITY MODEL CONTENTS

[0005] The problem to be solved by the present application is the problem of excessive noise generated by the brake drum in the prior art during braking.

[0006] To solve the above technical problems, the application provides a brake drum with noise reduction and heat dissipation functions.

[0007] Due to the equidistantly distributed heat dissipation holes in the brake drum, the linear propagation of air flow is effectively hindered when the air passes through the heat dissipation holes by the arrangement of the wave structure surface in the heat dissipation holes, the generation of wind noise is reduced, at the same time, the air flow is reflected and rubbed for many times, the energy is consumed, and the vibration is effectively reduced, the generation of noise is reduced, the design of the wave structure surface reduces the formation and influence of standing waves in the heat dissipation holes, and the problem of large noise generated in the braking process of the brake drum in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is an external structure diagram of the brake drum.

[0009] Figure 2 It is an internal structure diagram of the brake drum.

[0010] Figure 3 It is a schematic view of the annular embedding groove structure of the brake drum.

[0011] Figure 4 It is a schematic view of the isolation net structure of the brake drum.

[0012] Figure 5 It is a schematic view of the heat dissipation hole structure of the brake drum.

[0013] In the figure: 1, brake drum body; 2, mounting hole one; 3, connecting hole; 4, heat dissipation hole; 5, reinforcing rib; 6, heat conduction sheet; 7, mounting hole two; 8, mounting ring one; 9, isolation net; 10, mounting ring two; 11, annular embedding groove; 401, small aperture bottom end; 402, wave structure surface; 403, large aperture top end. DETAILED DESCRIPTION

[0014] The technical solutions of the brake drum will be clearly and completely described below in combination with the drawings in the brake drum, obviously, the described brake drum is only a part of the brake drum in the application, but not all the brake drum. Based on the brake drum in the application, all other brake drums obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0015] The application relates to a brake drum with noise reduction and heat dissipation functions, such as Figures 1-5As shown, the brake drum comprises a brake drum body 1, a connecting hole 3 is arranged in the center of the front surface of the brake drum body 1, and a plurality of heat dissipation holes 4 are arranged at equal distances on the circumferential outer wall of the brake drum body 1. A reinforcing rib 5 is welded between every two groups of heat dissipation holes 4. Each heat dissipation hole 4 is composed of a small-aperture bottom end 401, a wave structure surface 402 and a large-aperture top end 403.

[0016] In order to facilitate the heat dissipation and noise reduction of the brake drum during work, as shown in Figure 1 、 Figure 2 and Figure 5 , the large-aperture top end 403 is arranged at the top of the heat dissipation hole 4, the small-aperture bottom end 401 is arranged at the bottom of the heat dissipation hole 4, and the wave structure surface 402 is arranged inside the heat dissipation hole 4. By arranging the wave structure surface 402 inside the heat dissipation hole 4, the straight-line propagation of the airflow is effectively hindered when the airflow passes through the heat dissipation hole 4, thereby reducing the generation of wind noise. At the same time, the airflow is reflected and rubbed multiple times, thereby consuming energy and effectively reducing vibration and noise. The design of the wave structure surface 402 reduces the formation and influence of standing waves in the heat dissipation hole 4.

[0017] In order to facilitate the heat dissipation effect in the brake drum body 1, as shown in Figure 1 , a plurality of heat-conducting sheets 6 are welded at equal distances in the middle of the brake drum body 1. By arranging the heat-conducting sheets 6 at equal distances on the inclined surface at the tail end of the brake drum body 1, the heat-conducting efficiency can be improved during work, thereby ensuring the rapid conduction of heat in the brake drum body 1.

[0018] In order to ensure the cleanliness inside the brake drum body 1, as shown in Figure 2 、 Figure 3 、 Figure 4 , an isolation assembly is arranged inside the brake drum body 1, and the isolation assembly comprises a mounting ring one 8, an isolation net 9, a mounting ring two 10 and an annular embedding groove 11. The annular embedding groove 11 is arranged on one side of the inner circumference of the brake drum body 1, the mounting ring two 10 is clamped inside the annular embedding groove 11, the isolation net 9 is welded on one side of the mounting ring two 10, and the mounting ring one 8 is welded on one side of the isolation net 9. By inserting the mounting ring one 8 and the mounting ring two 10 with the isolation net 9 into the inside of the brake drum body 1, and clamping the mounting ring two 10 into the annular embedding groove 11, the fixation of the isolation net 9 is completed. The isolation net 9 is in close contact with the heat dissipation hole 4, thereby effectively ensuring the cleanliness inside the brake drum body 1.

[0019] In general, terminology can be understood at least in part from an ordinary sense of the corresponding terminology as would be understood by those of ordinary skill in the art to which the present disclosure relates. For example, and in accordance with common usage of the

[0020] It will be readily understood that the terms "on", "above", and "on top of", in the present disclosure, should be interpreted in the broadest context to mean not only "directly on something", but also to include the meaning of "on something" with intervening features or layers therebetween, and that "above" or "on top of" includes not only the meaning of "above" or "on top of something", but also the meaning of "above" or "on top of something" without intervening features or layers therebetween (i.e., directly on something).

[0021] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0022] Finally, it should be noted that the above-mentioned brake drums are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the above-mentioned brake drums, those skilled in the art should understand that the technical solutions recorded in the above-mentioned brake drums can still be modified, or part or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the brake drums of the present application.

Claims

1. A brake drum with noise reduction and heat dissipation function, comprising a brake drum body, characterized in that: The front center of the brake drum body is provided with a connecting hole, and the outer wall of the brake drum body is provided with equidistantly distributed heat dissipation holes, and the brake drum body is welded with reinforcing ribs near every two groups of heat dissipation holes, and each heat dissipation hole is composed of a small-aperture bottom end, a wave structure surface and a large-aperture top end.

2. The brake drum with noise reduction and heat dissipation function according to claim 1, characterized in that: The large-aperture top end is arranged at the top of the heat dissipation hole, the small-aperture bottom end is arranged at the bottom of the heat dissipation hole, and the wave structure surface is arranged inside the heat dissipation hole.

3. The brake drum with noise reduction and heat dissipation function according to claim 1, characterized in that: The brake drum body is welded with equidistantly distributed heat conduction sheets in the middle section.

4. The brake drum with noise reduction and heat dissipation function according to claim 1, characterized in that: The brake drum body is provided with an isolation assembly, and the isolation assembly comprises a mounting ring one, an isolation net, a mounting ring two and an annular embedding groove.

5. The brake drum with noise reduction and heat dissipation function according to claim 4, characterized in that: The annular embedding groove is arranged on one side of the inner circumference of the brake drum body, and the mounting ring two is clamped in the annular embedding groove.

6. The brake drum with noise reduction and heat dissipation function according to claim 4, characterized in that: The isolation net is welded on one side of the mounting ring two.

7. The brake drum with noise reduction and heat dissipation function according to claim 4, characterized in that: The mounting ring one is welded on one side of the isolation net.

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