Built-in brake drum easy to disassemble

Abstract

The built-in brake drum easy to disassemble comprises a brake drum installation seat and a brake friction ring, the brake friction ring is of a circular ring structure, and one end of the brake friction ring is arranged on the brake drum installation seat in a detachable mode. The brake friction ring is of a structure of two semi-circular rings, and the two semi-circular rings are installed on the brake drum installation base in an interference fit mode to form the brake friction ring of a circular ring structure. After-sale replacement and maintenance are facilitated, damage to a bearing locking nut, a hub bearing and a tire bolt caused by disassembly is avoided, and therefore the service life of a hub assembly is prolonged, and especially for a built-in brake drum.

Description

Technical Field

[0001] This utility model relates to a brake drum, and more particularly to an easily detachable built-in brake drum. Background Technology

[0002] Existing brake drums are made of gray cast iron in one piece, and their shortcomings are as follows:

[0003] Brake drums can be classified into built-in and external types according to their installation location.

[0004] Built-in brake drum: 1. Improved safety: Located inside the wheel hub, it won't fall out even if the tire nuts or rim come loose, preventing accidents. 2. More compact structure: The rim mounting distance can be reduced by two brake drum thicknesses.

[0005] External brake drums are easy to replace and remove because they are installed on the outside of the wheel hub. Internal brake drums are installed on the inside of the wheel hub. When removing them, you must first remove the half shaft, bearing lock nuts, etc., then remove the brake drum and wheel hub assembly together, and finally unscrew the tire bolts before you can remove the brake drum.

[0006] The conventional built-in brake drum is difficult to disassemble and replace, which seriously affects the efficiency of after-sales replacement. At the same time, the disassembly and reinstallation process may damage the bearing lock nuts, wheel hub bearings, and tire bolts, thereby affecting the quality of the axle assembly. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide an easily detachable built-in brake drum, thereby solving the problem of difficult disassembly and assembly of existing brake drums.

[0008] The technical solution to the above technical problem is: an easily detachable built-in brake drum, including a brake drum mounting base and a brake friction ring, wherein the brake friction ring is a circular ring structure, and one end of the brake friction ring is detachably mounted on the brake drum mounting base.

[0009] A further technical solution of this utility model is: one end of the brake friction ring is placed on the brake drum mounting seat with an interference fit.

[0010] The brake friction ring consists of two semi-circular rings. The two semi-circular rings are respectively interference-fitted and installed on the brake drum mounting base to form a single circular brake friction ring.

[0011] The brake drum mounting base is provided with a brake friction ring mounting groove, and one end of the brake friction ring is placed in the brake friction ring mounting groove with an interference fit.

[0012] The mounting groove for the brake friction ring is 20~180mm deep.

[0013] The brake drum mounting bracket has mounting holes.

[0014] Due to the adoption of the above technical solution, the easily detachable built-in brake drum of this utility model has the following beneficial effects:

[0015] 1. One end of the brake friction ring of this utility model is detachably mounted on the brake drum mounting base, which facilitates after-sales replacement and maintenance, avoids damage to the bearing lock nut, wheel hub bearing, and tire bolts caused by disassembly, thereby improving the life of the wheel hub assembly, especially for built-in brake drums.

[0016] 2. The friction ring is cylindrical, which is simple to manufacture and can easily meet the market's dynamic balancing requirements, thus reducing the cost of subsequent dynamic balancing processing.

[0017] 3. The brake drum mounting base and brake friction ring are designed as separate units. This allows for the selection of materials tailored to the different functions of each part. The brake drum mounting base can be made of lower-cost materials, provided the installation strength is sufficient, thus reducing overall costs. The brake friction ring can be made of brake-specific materials with better friction resistance and heat fade resistance, increasing the lifespan of the brake drum.

[0018] The technical features of an easily detachable built-in brake drum of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 : A schematic diagram of a structure with an easily detachable built-in brake drum.

[0020] Figure 2 : Schematic diagram of the brake drum mounting bracket.

[0021] Figure 3 : Schematic diagram of the brake drum mounting bracket.

[0022] Figure 4 Schematic diagram of a semi-circular ring structure brake friction ring.

[0023] In the above figures, the reference numerals are explained as follows:

[0024] 1-Brake drum mounting base, 2-Brake friction ring, 3-Brake friction ring with semi-circular ring structure. Detailed Implementation

[0025] An easily detachable built-in brake drum is disclosed, comprising two parts: a brake drum mounting base and a brake friction ring. The brake friction ring is a circular ring structure, with one end detachably mounted on the brake drum mounting base. The other end of the brake friction ring is press-fitted onto the brake drum mounting base. The mounting method between this end of the brake friction ring and the brake drum mounting base is a semi-enclosed structure.

[0026] The brake drum mounting base has a brake friction ring mounting groove for mounting the brake friction ring. One end of the brake friction ring is placed in the brake friction ring mounting groove with an interference fit. The brake friction ring is a structure of two semi-circular rings, which are interference-fitted onto a single brake drum mounting base to form a single circular brake friction ring. The brake friction ring mounting groove is 20~180mm deep and is interference-fitted with the friction ring. The brake drum mounting base has multiple mounting holes, through which the internal brake drum is mounted on the wheel hub using tire bolts and mounting holes.

Claims

1. A removable built-in brake drum characterized by: The brake drum mounting seat and the brake friction ring are included, the brake friction ring is a circular ring structure, and one end of the brake friction ring is detachably arranged on the brake drum mounting seat; one end of the brake friction ring is placed and arranged on the brake drum mounting seat in an interference fit; the brake friction ring is a two-semi-circular ring structure, and the two semi-circular rings are interference-fitted and mounted on the brake drum mounting seat to form a brake friction ring with a circular ring structure.

2. A knock-down built-in brake drum as claimed in claim 1, wherein: The brake drum mounting seat is provided with a brake friction ring mounting groove, and one end of the brake friction ring is placed and arranged in the brake friction ring mounting groove in an interference fit.

3. A knock-down drum brake assembly as claimed in claim 2 wherein: The brake friction ring mounting groove is 20-180 mm deep.

4. A knock-down built-in brake drum as claimed in claim 1, wherein: The brake drum mounting seat is provided with a mounting hole.

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