CN215567558U

CN215567558U - Low-noise rear drum brake assembly for automobile

Info

Publication number: CN215567558U
Application number: CN202121685691.5U
Authority: CN
Inventors: 陈均站; 程洪武; 毛思宁; 王海防; 徐小龙; 任炎炎
Original assignee: Zhejiang Hangmo Ou Yi Auto Parts Co ltd
Current assignee: Zhejiang Hangmo Ou Yi Auto Parts Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-01-18
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a low-noise rear drum brake assembly for an automobile, which comprises a drum body, wherein an auxiliary mechanism is arranged in the drum body, the auxiliary mechanism comprises a connecting column, the connecting column is fixedly arranged on the rear side wall of an inner cavity of the drum body and extends to the rear side of the drum body, a heat conducting pipe is fixedly arranged outside the connecting column, and a shell is fixedly arranged outside the drum body. This drum brake assembly behind low noise for car, design through complementary unit, if at long-time driving process, because the traffic stroke is not always smooth and easy, consequently the driver must can the high frequency step on the brake, inside frictional vibration can produce the noise this moment, and through the design of acoustical panel, can fall the noise that frictional vibration produced, the expansion of noise reduction volume, also can produce the high heat through frictional force because the brake is stepped on to the high frequency, consequently, through the design of heat pipe, can also derive the high heat of the internal portion of drum, thereby reach the effect of cooling to the internal portion of drum.

Description

Low-noise rear drum brake assembly for automobile

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to a low-noise rear drum type brake assembly for an automobile.

Background

Drum brakes, also called block brakes, are used for braking by pressing brake pads on brake wheels, drum brakes are early designed brake systems, the design of brake drums of drum brakes is used on a carriage in 1902 years, the drum brakes are not widely used in the automobile industry until about 1920 years, the mainstream of drum brakes is of a tension type, brake pads (brake shoes) of drum brakes are positioned on the inner side of brake wheels, the brake pads are outwards opened during braking to rub against the inner side of the brake wheels to achieve the purpose of braking, and in nearly thirty years, drum brakes are gradually withdrawn from abdicating to disc brakes in the field of cars.

At present, the heat dissipation performance of a drum brake is poor, a large amount of heat is collected in the braking process due to the poor heat dissipation performance, the brake block and the drum are easy to generate extremely complex deformation under the influence of high temperature, the phenomena of brake recession and vibration are easy to generate, a series of problems such as reduction of braking efficiency, poor braking effect and the like are caused, and the personal safety of personnel in a vehicle is even endangered if the problems are serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-noise rear drum brake assembly for an automobile, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the low-noise rear drum brake assembly for the automobile comprises a drum body, wherein an auxiliary mechanism is arranged in the drum body.

The auxiliary mechanism comprises a connecting column, the connecting column is fixedly mounted on the rear side wall of the inner cavity of the drum body and extends to the rear side of the drum body, a heat pipe is fixedly mounted outside the connecting column, a shell is fixedly mounted outside the drum body, the connecting column and the heat pipe all extend to the outside of the shell, a brake cylinder is arranged at the top of the connecting column, a first spring is arranged inside the brake cylinder, first fixing columns are fixedly mounted at two ends of the first spring, two first fixing columns all extend to the outside of the brake cylinder, brake shoes are fixedly mounted on the outside of the two connecting columns, and a sound-absorbing plate is fixedly mounted on the front side of each brake shoe.

Preferably, two equal fixed mounting in brake shoe front side has pressure spring, two equal fixed mounting in brake shoe outside has the brake block, and the brake block of being convenient for brakes the drum body.

Preferably, a tension spring is arranged at the bottom of the brake cylinder, second fixing columns are fixedly mounted at two ends of the tension spring, and the two second fixing columns are fixedly connected with the two brake shoes respectively, so that the two brake shoes can be stretched and reset conveniently.

Preferably, the connecting column is fixedly provided with a bottom plate outside, a plurality of heat dissipation holes are formed in the bottom plate, and two fixing springs are fixedly arranged between the brake shoes, so that the inside of the drum body is conveniently dissipated, and the stretching and resetting of the brake shoes are conveniently enhanced.

Preferably, a connecting plate is fixedly mounted inside one of the brake shoes, a first empty slot is formed inside the connecting plate, and a second empty slot is formed inside one of the brake shoes so as to be connected with a second spring conveniently.

Preferably, be connected with the second spring between first dead slot and the second dead slot, the equal fixed mounting in second spring both ends has the coupling hook, two inside the coupling hook extends to first dead slot and second dead slot respectively, the state when being convenient for adjust the internal braking of drum.

Preferably, an adjusting rod is movably connected between the two brake shoes and arranged at the top of the connecting column, so that the state of the brake shoes can be adjusted conveniently.

Compared with the prior art, the utility model provides a low-noise rear drum brake assembly for an automobile. The method has the following beneficial effects:

this low noise rear drum brake assembly for car, design through complementary unit, if at long-time driving process, because the traffic stroke is not always smooth and easy, consequently the driver must can step on the brake with high frequency, inside friction vibration can produce the noise this moment, and through the design of acoustical panel, can fall the noise that friction vibration produced, the expansion of noise reduction volume, because the brake is stepped on to the high frequency also can produce the high heat through frictional force, consequently, through the design of heat pipe, can also derive the inside high heat of drum, thereby reach the effect of cooling down to the drum body inside, solve brake block and wheel drum and easily take place very complicated deformation under the high temperature influence, and produce the phenomenon that the braking is degenerated and trembled easily.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front cross-sectional view of the brake cylinder of the present invention;

FIG. 3 is a front cross-sectional view of the acoustical panel;

fig. 4 is a side view of the drum body.

In the figure: 1. a drum body; 2. an auxiliary mechanism; 201. connecting columns; 202. a heat conducting pipe; 203. a housing; 204. a brake cylinder; 205. a first spring; 206. a first fixed column; 207. a brake shoe; 208. a sound-absorbing panel; 3. a compression spring; 4. a brake pad; 5. a tension spring; 6. a second fixed column; 7. a base plate; 8. fixing the spring; 9. a connecting plate; 10. a second spring; 11. a connecting hook; 12. and adjusting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a low-noise rear drum brake assembly for an automobile comprises a drum body 1, wherein an auxiliary mechanism 2 is arranged inside the drum body 1.

The auxiliary mechanism 2 comprises a connecting column 201, the connecting column 201 is fixedly installed on the rear side wall of the inner cavity of the drum body 1 and extends to the rear side of the drum body 1, a heat pipe 202 is fixedly installed outside the connecting column 201, a shell 203 is fixedly installed outside the drum body 1, the connecting column 201 and the heat pipe 202 both extend to the outside of the shell 203, a brake cylinder 204 is arranged at the top of the connecting column 201, a first spring 205 is arranged inside the brake cylinder 204, first fixing columns 206 are fixedly installed at two ends of the first spring 205, the two first fixing columns 206 both extend to the outside of the brake cylinder 204, brake shoes 207 are fixedly installed outside the two connecting columns 201, sound-absorbing plates 208 are fixedly installed at the front sides of the two brake shoes 207, compression springs 3 are fixedly installed at the front sides of the two brake shoes 207, brake pads 4 are fixedly installed outside the two brake shoes 207, the brake pads 4 are convenient for braking the drum body 1, and a tension spring 5 is arranged at the bottom of the brake cylinder 204, the two ends of the tension spring 5 are fixedly provided with second fixing columns 6, the two second fixing columns 6 are respectively fixedly connected with the two brake shoes 207 so as to facilitate stretching and resetting of the two brake shoes 207, the outer part of the connecting column 201 is fixedly provided with a bottom plate 7, the inner part of the bottom plate 7 is provided with a plurality of heat dissipation holes, a fixing spring 8 is fixedly arranged between the two brake shoes 207 so as to facilitate heat dissipation of the inner part of the drum body 1 and facilitate stretching and resetting of the two brake shoes 207, one of the brake shoes 207 is fixedly provided with a connecting plate 9, the inner part of the connecting plate 9 is provided with a first empty slot, the inner part of one of the brake shoes 207 is provided with a second empty slot so as to facilitate connection of a second spring 10, the second spring 10 is connected between the first empty slot and the second empty slot, the two ends of the second spring 10 are respectively fixedly provided with connecting hooks 11, the two connecting hooks 11 respectively extend into the first empty slot and the second empty slot so as to facilitate adjustment of the state of the inner part of the drum body 1 during braking, an adjusting rod 12 is movably connected between the two brake shoes 207, and the adjusting rod 12 is arranged at the top of the connecting column 201, so that the state of the brake shoes 207 can be adjusted conveniently.

In the actual operation process, when the device is used, when the interior of the drum body 1 needs to be braked, a person presses the brake plate to stretch the first spring 205, and simultaneously the fixed spring 8, the second spring 10, the tension spring 5 and the compression spring 3 are all stretched, which is the prior art, at this time, the brake shoe 207 drives the brake pad 4 to move, the brake pad 4 moves to perform friction deceleration on the interior of the drum body 1, meanwhile, if the traffic stroke is not smooth necessarily in the long-time driving process, the driver can press the brake at high frequency, the friction vibration in the interior can generate noise, the noise generated by the friction vibration can be reduced through the design of the sound-absorbing plate 208, the noise volume is reduced, the high heat can be generated through the friction force due to the high-frequency pressing of the brake, therefore, through the design of the heat-conducting pipe 202, the high heat in the interior of the drum body 1 can be led out, thereby achieving the effect of cooling the interior of the drum body 1, and solving the problems that the brake block and the wheel drum are easy to generate extremely complex deformation under the influence of high temperature and the phenomena of brake recession and vibration are easy to generate.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a drum brake assembly behind low noise for car, includes drum body (1), its characterized in that: an auxiliary mechanism (2) is arranged in the drum body (1);

the auxiliary mechanism (2) comprises a connecting column (201), the connecting column (201) is fixedly arranged on the rear side wall of the inner cavity of the drum body (1) and extends to the rear side of the drum body (1), a heat conducting pipe (202) is fixedly arranged outside the connecting column (201), a shell (203) is fixedly arranged outside the drum body (1), the connecting column (201) and the heat conducting pipe (202) extend to the outside of the shell (203), a brake cylinder (204) is arranged at the top of the connecting column (201), a first spring (205) is arranged inside the brake cylinder (204), first fixed columns (206) are fixedly mounted at two ends of the first spring (205), the two first fixed columns (206) extend to the outside of the brake cylinder (204), brake shoes (207) are fixedly mounted on the outside of the two connecting columns (201), and silencing plates (208) are fixedly mounted on the front sides of the two brake shoes (207).

2. The low noise rear drum brake assembly for the vehicle according to claim 1, wherein: and the front sides of the two brake shoes (207) are fixedly provided with compression springs (3), and the outsides of the two brake shoes (207) are fixedly provided with brake pads (4).

3. The low noise rear drum brake assembly for the vehicle according to claim 1, wherein: the brake cylinder (204) is provided with a tension spring (5) at the bottom, two ends of the tension spring (5) are fixedly provided with second fixing columns (6), and the two second fixing columns (6) are fixedly connected with two brake shoes (207) respectively.

4. The low noise rear drum brake assembly for the vehicle according to claim 1, wherein: the outer fixed mounting of spliced pole (201) has bottom plate (7), a plurality of louvres have been seted up to bottom plate (7) inside, two fixed mounting has fixed spring (8) between brake shoe (207).

5. The low noise rear drum brake assembly for the vehicle according to claim 1, wherein: a connecting plate (9) is fixedly installed inside one of the brake shoes (207), a first empty groove is formed inside the connecting plate (9), and a second empty groove is formed inside one of the brake shoes (207).

6. The low noise rear drum brake assembly for the vehicle according to claim 5, wherein: be connected with second spring (10) between first dead slot and the second dead slot, the equal fixed mounting in second spring (10) both ends has coupling hook (11), two coupling hook (11) extend to inside first dead slot and the second dead slot respectively.

7. The low noise rear drum brake assembly for the vehicle according to claim 1, wherein: an adjusting rod (12) is movably connected between the two brake shoes (207), and the adjusting rod (12) is arranged at the top of the connecting column (201).