CN213981753U

CN213981753U - Brake drum assembly and car

Info

Publication number: CN213981753U
Application number: CN202022966961.1U
Authority: CN
Inventors: 冯涛; 刘明; 陈凯强
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-17
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to the technical field of automobiles, in particular to a brake drum assembly and an automobile, wherein the brake drum assembly comprises a brake drum body and a hollow cavity, the brake drum body is sleeved on a brake friction sheet, and the brake friction sheet can be abutted against the inner wall surface of the brake drum body; the heat insulation gasket is annular, is arranged coaxially with the brake drum body and is positioned at one end of the brake drum body; and the connecting flange is coaxially arranged with the brake drum body and is positioned on one side of the heat insulation gasket, which deviates from the brake drum body, and the connecting flange is fixedly connected with the rim. The utility model discloses can reduce the heat on the flange that transmits the brake drum to reduce the frequency that the tire bursts because being heated.

Description

Brake drum assembly and car

Technical Field

The utility model relates to the technical field of automobiles, especially, relate to a brake drum assembly and car.

Background

With the development of the automobile industry, more and more automobiles enter production and life, and the appearance of automobiles brings great convenience to the life of people. Wherein cars are also often used in engineering.

The drive axle of the domestic engineering vehicle is used for road conditions with large gradient and more turning, such as mine pits, construction sites and the like. The road condition needs to be braked frequently, and the braking torque is large, so that the frequent high-strength friction between the brake drum and the brake friction plate is caused, the temperature of the brake drum is too high, and even can reach more than 200 ℃. Because the flange terminal surface of brake drum and rim direct contact, high temperature conducts on the rim, leads to the problem of tire burst to take place frequently.

Therefore, a brake drum assembly and a vehicle are needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brake drum assembly and car can reduce the heat on the flange that transmits the brake drum to reduce the tire because the frequency of being heated and blowing out.

To achieve the purpose, the utility model adopts the following technical proposal:

a brake drum assembly comprising:

the brake drum comprises a brake drum body and a brake drum body, wherein the brake drum body is provided with a hollow cavity, the brake drum body is sleeved on a brake friction sheet, and the brake friction sheet can be abutted against the inner wall surface of the brake drum body;

the heat insulation gasket is annular, is arranged coaxially with the brake drum body and is positioned at one end of the brake drum body;

and the connecting flange is coaxially arranged with the brake drum body and is positioned on one side of the heat insulation gasket, which deviates from the brake drum body, and the connecting flange is fixedly connected with the rim.

Optionally, the flange includes a first flange ring portion, a connecting ring portion and a second flange ring portion that the coaxial line set up, first flange ring portion with the one end of connecting ring portion is connected, second flange ring portion with the one end that connecting ring portion deviates from first flange ring portion is connected, first flange ring portion with this body coupling of brake drum, second flange ring portion with rim fixed connection.

Optionally, a first connecting hole is formed in the end face, facing one end of the heat insulation gasket, of the brake drum body, a second connecting hole aligned with the first connecting hole is formed in the heat insulation gasket, a first mounting hole aligned with the first connecting hole is formed in the first flange ring portion, and the first fixing piece sequentially penetrates through the first mounting hole and the second connecting hole to be in threaded connection with the first connecting hole.

Optionally, the first connecting hole is provided with a plurality of along the circumference interval of brake drum body, the second connecting hole is provided with a plurality of along the circumference interval of thermal-insulated gasket, and with the setting of first connecting hole one-to-one, the first mounting hole is followed the circumference interval of first flange ring portion sets up a plurality ofly, and with the setting of first connecting hole one-to-one.

Optionally, an installation protrusion is convexly arranged on the outer circumferential surface of the brake drum body, and the installation protrusion is located at the edge of the first connection hole.

Alternatively, the mounting projection is provided in plurality in the circumferential direction of the brake drum body.

Optionally, a second mounting hole is formed in the second flange ring portion, a third mounting hole is formed in the rim, and a second fixing piece is arranged in the second mounting hole and the third mounting hole in a penetrating manner.

Optionally, the second mounting holes are formed at intervals along the circumferential direction of the second flange ring portion, and the third mounting holes are formed at intervals along the circumferential direction of the rim and are arranged in one-to-one correspondence with the second mounting holes.

Optionally, the first flange ring portion is provided with a positioning ring portion which is coaxial with the first flange ring portion on one side of the brake drum body, the positioning ring portion is arranged in the brake drum body in a penetrating manner, and the positioning ring portion is sleeved with the heat insulation gasket.

An automobile is provided with the brake drum assembly.

The utility model has the advantages that:

the utility model provides a brake drum assembly, brake drum body cover is established on the brake friction disc, the braking to the wheel is realized with the internal face butt of brake drum body to the brake friction disc, the brake drum body passes through flange and is connected with the rim, be provided with thermal-insulated gasket between brake drum body and flange, can cut off the route of the heat that produces to the flange transmission because the friction on the brake drum body through setting up thermal-insulated gasket, thereby reduce flange's heat, and then reduce the heat that transmits to the rim, play the purpose that prevents the tire explosion that is heated, reduce the tire because the frequency of being heated and blowing out.

The utility model provides an automobile is provided with on it and is as above brake drum assembly can cut off the route of the heat that produces to flange transmission because the friction on the brake drum body through setting up thermal-insulated gasket to reduce flange's heat, and then reduce the heat that transmits to the rim, thereby play the purpose that prevents the tire explosion of being heated, reduce the tire because the frequency of being heated and blowing out.

Drawings

FIG. 1 is a cross-sectional view of a brake drum assembly of the present invention;

FIG. 2 is an exploded view of a brake drum assembly according to the present invention;

fig. 3 is a schematic view of a connecting flange in a brake drum assembly according to the present invention.

In the figure:

1. braking the friction plate; 2. a brake drum assembly; 21. a brake drum body; 211. mounting a boss; 22. a heat insulating spacer; 221. a second connection hole; 23. a connecting flange; 231. a first flange ring portion; 2311. a first connection hole; 2312. a positioning ring portion; 232. a connecting ring portion; 233. a second flange ring portion; 2331. a first mounting hole; 24. a first fixing member; 3. a rim; 4. a hub; 5. a hub reduction gear case; 6. a second fixing member; 7. and a nut.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to reduce the heat transferred to the rim through the connecting flange of the brake drum in the frequent braking process of the vehicle, thereby reducing the tire burst frequency caused by heating, as shown in fig. 1-3, the utility model provides a brake drum assembly. This brake drum assembly 2 includes: a brake drum body 21, a heat insulating pad 22 and a connecting flange 23.

The brake drum body 21 is provided with a hollow cavity, the brake drum body 21 is sleeved on the brake friction plate 1, and the brake friction plate 1 can be abutted against the inner wall surface of the brake drum body 21 to brake the wheel; the heat insulation gasket 22 is annular, is arranged coaxially with the brake drum body 21 and is positioned at one end of the brake drum body 21; the connecting flange 23 and the brake drum body 21 are coaxially arranged and located on one side, away from the brake drum body 21, of the heat insulation gasket 22, and the connecting flange 23 is fixedly connected with the rim 3.

The path of heat generated by friction on the brake drum body 21 to the connecting flange 23 can be cut off by arranging the heat insulation gasket 22, so that the heat of the connecting flange 23 is reduced, the heat transmitted to the rim 3 is reduced, the purpose of preventing the tire from being heated and exploded is achieved, and the tire explosion frequency caused by heating is reduced.

Further, the flange 23 includes the first flange ring portion 231, the connection ring portion 232 and the second flange ring portion 233 that set up coaxially, and first flange ring portion 231 is connected with the one end of connection ring portion 232, and second flange ring portion 233 is connected with the one end that connection ring portion 232 deviates from first flange ring portion 231, and first flange ring portion 231 is connected with brake drum body 21, and second flange ring portion 233 and rim 3 fixed connection. With the above arrangement, the first flange ring portion 231 and the second flange ring portion 233 are integrated together via the connecting ring portion 232, so that the connection with the brake drum body 21 is realized on the one hand, and the connection with the rim 3 is realized on the other hand. The connecting flange 23 is simple and compact in structure. In order to ensure the connection strength between the first flange ring 231, the second flange ring 233 and the connecting ring 232, in the present embodiment, the first flange ring 231, the second flange ring 233 and the connecting ring 232 are an integrated structure.

Further, a first connection hole 2311 is formed in an end face of one end, facing the heat insulating spacer 22, of the brake drum body 21, a second connection hole 221 aligned with the first connection hole 2311 is formed in the heat insulating spacer 22, a first installation hole 2331 aligned with the first connection hole 2311 is formed in the first flange ring portion 231, and the first fixing member 24 sequentially penetrates through the first installation hole 2331 and the second connection hole 221 to be in threaded connection with the first connection hole 2311. The fixed connection between the brake drum body 21, the heat insulating gasket 22 and the coupling flange 23 is facilitated by forming the first coupling hole 2311, the second coupling hole 221 and the first mounting hole 2331. Moreover, since the brake drum body 21 is easily worn after a long time operation, in the present embodiment, only the brake drum body 21 needs to be removed and replaced, thereby reducing the cost of maintenance.

Further, in order to guarantee the joint strength between brake drum body 21 and flange 23, prevent in high strength work that flange 23 and brake drum body 21 break away from to be connected or be connected not hard up, first connecting hole 2311 sets up a plurality ofly along the circumference interval of brake drum body 21, second connecting hole 221 sets up a plurality ofly along the circumference interval of heat insulating gasket 22, and set up with first connecting hole 2311 one-to-one, first mounting hole 2331 sets up a plurality ofly along the circumference interval of first flange ring portion 231, and set up with first connecting hole 2311 one-to-one. First fixing pieces 24 are respectively and correspondingly provided in the first mounting hole 2331, the second connection hole 221 and the first connection hole 2311 to ensure connection stability between the connection flange 23 and the brake drum body 21.

Further, the outer circumferential surface of the brake drum body 21 is provided with a mounting protrusion 211 in a protruding manner, and the mounting protrusion 211 is located at the edge of the first connection hole 2311. Through setting up the installation arch 211, can increase the area when offering first connecting hole 2311 on brake drum body 21 to guarantee that first connecting hole 2311 has under the condition of sufficient intensity, reduce the degree of difficulty of processing first connecting hole 2311. Moreover, the end face of the brake drum body 21 does not need to be excessively enlarged, and the design is light.

Further, the mounting projections 211 are provided in plurality in the circumferential direction of the brake drum body 21. It is ensured that the edge of each first coupling hole 2311 is provided with one mounting protrusion 211.

Further, a second mounting hole is formed in the second flange ring portion 233, a third mounting hole is formed in the rim 3, and the second fixing member 6 is arranged in the second mounting hole and the third mounting hole in a penetrating manner. The second flange ring portion 233 is connected to the rim 3 by the first fixing member 24. In this embodiment, the second fixing member 6 is a bolt, the second fixing member 6 fixedly connects the hub reduction gear case 5, the hub 4, and the rim 3, a nut 7 is screwed to an end surface of the bolt, and the second flange ring portion 233 and the rim 3 are detachably connected by tightening the nut 7.

Further, in order to ensure the fixed connection strength between the connecting flange 23 and the rim 3, in this embodiment, the second mounting holes are formed at intervals in the circumferential direction of the second flange ring portion 233, and the third mounting holes are formed at intervals in the circumferential direction of the rim 3 and are arranged in one-to-one correspondence with the second mounting holes. The connecting flange 23 is fixedly connected with the rim 3 through a plurality of second fixing pieces 6, so that the connecting stability of the connecting flange 23 and the rim 3 is ensured.

Further, a positioning ring portion 2312 coaxial with the first flange ring portion 231 is arranged on one side of the first flange ring portion 231 facing the brake drum body 21, the positioning ring portion 2312 penetrates through the brake drum body 21, and the heat insulation gasket 22 is sleeved on the positioning ring portion 2312. By arranging the positioning ring portion 2312, the position of the heat insulation gasket 22 can be conveniently determined, the positioning of the connecting flange 23 on the brake drum body 21 can be realized, and the installation of the connecting flange 23 is convenient.

The embodiment also provides an automobile provided with the brake drum assembly 2, wherein the brake drum assembly 2 can reduce the heat transferred to the connecting flange 23 of the brake drum, thereby reducing the frequency of tire burst caused by heat.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A brake drum assembly, comprising:

the brake drum comprises a brake drum body (21) provided with a hollow cavity, wherein the brake drum body (21) is sleeved on a brake friction plate (1), and the brake friction plate (1) can be abutted against the inner wall surface of the brake drum body (21);

the heat insulation gasket (22) is annular, is arranged coaxially with the brake drum body (21), and is positioned at one end of the brake drum body (21);

and the connecting flange (23) is coaxially arranged with the brake drum body (21) and is positioned on one side of the heat insulation gasket (22) deviating from the brake drum body (21), and the connecting flange (23) is fixedly connected with the rim (3).

2. A brake drum assembly according to claim 1, wherein the connecting flange (23) comprises a first flange ring portion (231), a connecting ring portion (232) and a second flange ring portion (233) which are coaxially arranged, the first flange ring portion (231) is connected with one end of the connecting ring portion (232), the second flange ring portion (233) is connected with one end of the connecting ring portion (232) which is far away from the first flange ring portion (231), the first flange ring portion (231) is connected with the brake drum body (21), and the second flange ring portion (233) is fixedly connected with the rim (3).

3. The brake drum assembly as claimed in claim 2, wherein a first connection hole (2311) is formed in an end surface of one end of the brake drum body (21) facing the heat insulating spacer (22), a second connection hole (221) aligned with the first connection hole (2311) is formed in the heat insulating spacer (22), a first mounting hole (2331) aligned with the first connection hole (2311) is formed in the first flange ring portion (231), and a first fixing member (24) sequentially penetrates through the first mounting hole (2331), the second connection hole (221) and the first connection hole (2311) to be in threaded connection.

4. The brake drum assembly as claimed in claim 3, wherein the first connection holes (2311) are provided in plurality at intervals in a circumferential direction of the brake drum body (21), the second connection holes (221) are provided in plurality at intervals in a circumferential direction of the heat insulating spacer (22) and provided in one-to-one correspondence with the first connection holes (2311), and the first mounting holes (2331) are provided in plurality at intervals in a circumferential direction of the first flange ring portion (231) and provided in one-to-one correspondence with the first connection holes (2311).

5. A brake drum assembly according to claim 3, wherein a mounting projection (211) is projected from the outer circumferential surface of the brake drum body (21), and the mounting projection (211) is located at the edge of the first connecting hole (2311).

6. A brake drum assembly according to claim 5, wherein the mounting projection (211) is provided in plural in a circumferential direction of the brake drum body (21).

7. The brake drum assembly as claimed in claim 2, wherein the second flange ring portion (233) is provided with a second mounting hole, the rim (3) is provided with a third mounting hole, and the second fixing member (6) is inserted into the second mounting hole and the third mounting hole.

8. The brake drum assembly as claimed in claim 7, wherein the second mounting holes are formed in a plurality at intervals in the circumferential direction of the second flange ring portion (233), and the third mounting holes are formed in a plurality at intervals in the circumferential direction of the rim (3) and arranged in one-to-one correspondence with the second mounting holes.

9. A brake drum assembly according to claim 2, wherein a positioning ring portion (2312) coaxial with the first flange ring portion (231) is arranged on a side of the first flange ring portion (231) facing the brake drum body (21), the positioning ring portion (2312) is arranged in the brake drum body (21) in a penetrating manner, and the heat insulating gasket (22) is sleeved on the positioning ring portion (2312).

10. An automobile having a brake drum assembly according to any one of claims 1 to 9 provided thereon.