CN113915261A

CN113915261A - Combined brake disc

Info

Publication number: CN113915261A
Application number: CN202111206367.5A
Authority: CN
Inventors: 赵京旗
Original assignee: Nanjing Bulier Auto Parts Co ltd
Current assignee: Nanjing Bulier Auto Parts Co ltd
Priority date: 2021-10-16
Filing date: 2021-10-16
Publication date: 2022-01-11

Abstract

A combined brake disc comprises a wear-resistant brake disc and a brake mounting cap for connecting the wear-resistant brake disc and a brake hub; the wear-resistant brake disc is of an annular double-layer structure and comprises an upper brake face and a lower brake face, the upper brake face forms a circle of first toothed belt along an inner ring of the upper brake face, the brake mounting cap is an integrally formed stamping part and comprises a circular plate-shaped end cover and a side plate which is enclosed into a circle, the side plate is bent outwards and protrudes to form a circle of second toothed belt, and the second toothed belt of the brake mounting cap is inserted into the first toothed belt of the wear-resistant brake disc.

Description

Combined brake disc

Technical Field

The invention relates to the field of automobile brake part manufacturing, in particular to a combined brake disc.

Background

The brake disc, namely the brake disc, is a metal disc, is made of alloy steel, is fixed on a wheel, rotates along with the wheel, is a key part in an automobile brake, and when a vehicle steps on the brake in the running process, a brake caliper clamps the brake disc to play a role in reducing speed or stopping.

The brake discs adopted at the present stage are all designed by integrally forming gray cast iron, the power of the brake discs is strong in some high-end vehicle types, when the vehicle runs at high speed and meets an emergency brake, the joint of the gray cast iron brake disc and the brake hub is easy to break due to insufficient strength under the action of large braking torque, and the brake surface wear resistance is reduced and the service life is shortened by integrally using a high-strength stamping part to replace gray cast iron, so that the situation that fish and bear soles cannot be obtained simultaneously exists all the time.

Therefore, it is a problem to be solved in the art to provide a combined brake disc capable of satisfying the strength required by a large braking torque while maintaining excellent wear resistance.

Disclosure of Invention

Aiming at the problems, the invention provides a combined brake disc which is of a split structure and comprises a wear-resistant brake disc and a brake mounting cap for connecting the wear-resistant brake disc and a brake hub; wear-resisting brake disc is annular bilayer structure, including two-layer braking face from top to bottom, and the braking face on upper strata forms the first profile of tooth area of round along its inner circle, braking installation cap is integrated into one piece's stamping workpiece, and it includes the end cover of disc shape and encloses into the curb plate of round, and the curb plate is outwards bent the arch and is formed the second profile of tooth area of round, and the profile of tooth area interlude of braking installation cap is in wear-resisting brake disc's first profile of tooth area.

Furthermore, the wear-resistant brake disc comprises an upper layer of brake surface and a lower layer of brake surface, a plurality of rib plates are arranged between the two layers of brake surfaces, the plurality of rib plates are uniformly distributed along the diameter direction of the brake surfaces, and an air channel is formed between every two adjacent rib plates.

Furthermore, a circle of convex buckles are distributed on the first toothed belt, and the edges of the buckles are subjected to round chamfering treatment.

Furthermore, a mounting hole is formed in the center of the end cover, a plurality of connecting holes are formed in the periphery of the mounting hole, and the connecting holes are evenly distributed around the mounting hole at equal intervals.

Furthermore, the end cover is provided with at least one positioning hole.

Furthermore, a long hole and a limiting block are arranged at the concave position of the second toothed belt.

Furthermore, the rectangular hole is arranged at the edge of the bottom, the limiting block is arranged in the middle, and the plurality of rectangular holes and the limiting block are arranged at intervals to form a circle.

Compared with the prior art, the invention has the following beneficial effects:

the invention adopts a split type combination design, realizes that the wear-resistant brake disc and the brake mounting cap are made of different materials, not only retains the wear-resistant performance of the traditional gray cast iron brake disc, but also utilizes the characteristic of high strength of the stamping part of the brake mounting cap to meet the rigidity requirement under the action of large torque during emergency braking, avoids the problems of deformation, fracture and the like of the brake disc caused by large torque, and meets the use requirement of high-end vehicle models with large displacement.

Drawings

FIG. 1 is a schematic diagram of the combined structure of the present invention.

Fig. 2 is a schematic structural view of a wear-resistant brake disc according to the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of the brake mounting cap of the present invention.

Fig. 5 is a partially enlarged view at B in fig. 4.

Reference numerals: 1. a wear resistant brake disc; 2. a brake mounting cap; 101. a braking surface; 102. a rib plate; 103. a first toothed belt; 104. buckling; 201. an end cap; 202. a side plate; 203. mounting holes; 204. connecting holes; 205. a second toothed belt; 206. a strip hole; 207. a limiting block; 208. and (7) positioning the holes.

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 to 5, a composition structure of a combined brake disc according to the present invention is shown, which adopts a split type brake disc and a brake mounting cap to maintain good wear resistance and meet the strength required by large braking torque, wherein the combined brake disc includes a wear-resistant brake disc 1 and a brake mounting cap 2 connecting the wear-resistant brake disc and a brake hub (not shown); the wear-resistant brake disc 1 is of an annular double-layer structure and comprises an upper layer of braking surface 101, a lower layer of braking surface 101 and a plurality of rib plates 102 for connecting the two layers of braking surfaces 101, the rib plates 102 and the two layers of braking surfaces 101 are of an integrally formed structure, the plurality of rib plates 102 are uniformly distributed along the diameter direction of the braking surfaces, and an air duct is formed between every two adjacent rib plates, so that heat generated by friction during braking can be dissipated in an accelerated manner; the braking surface of upper strata forms a circle first tooth belt 103 along its inner circle, distributes the bellied buckle 104 of a circle on the first tooth belt, and the edge of buckle is done the round chamfer and is handled, plays the effect of direction, and braking mounting cap 2 alternates in first tooth belt 103, fixes through buckle 104.

The brake mounting cap 2 is an integrally formed stamping part and comprises a circular end cover 201 and a side plate 202 enclosing into a circle, wherein a mounting hole 203 is formed in the center of the end cover 201, a plurality of connecting holes 204 are formed in the periphery of the mounting hole, the connecting holes are uniformly distributed around the mounting hole 203 at equal intervals, and in addition, at least one positioning hole 208 is formed in the end cover.

The side plate 202 is bent outwards to form a circle of second toothed belt 205, a concave part of the second toothed belt 205 is provided with a strip hole 206 and a limiting block 207, the strip hole 206 is formed at the edge of the bottom, the limiting block 207 is positioned at the middle part, and the strip holes 206 and the limiting block 207 are installed at intervals to form a circle; in the process of mounting the wear-resistant brake disc 1 and the brake mounting cap 2, the protrusion of the second toothed belt 205 is aligned with the recess of the first toothed belt 103, the brake mounting cap 2 is embedded into the wear-resistant brake disc 1 by pressurizing through equipment until the buckle 104 penetrates out of the strip hole 206, and the limiting block 207 is pressed on the upper surface of the wear-resistant brake disc 1, so that the wear-resistant brake disc 1 and the brake mounting cap 2 are tightly connected.

The invention adopts a split design, realizes that the wear-resistant brake disc 1 and the brake mounting cap 2 are made of different materials, not only retains the wear resistance of the traditional gray cast iron brake disc, but also utilizes the characteristic of high strength of the stamping part of the brake mounting cap to meet the rigidity requirement under the action of large torque during emergency braking, avoids the problems of deformation, fracture and the like of the brake disc caused by large torque, and meets the use requirement of high-end vehicle models with large displacement.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The combined brake disc is characterized by being of a split type combined structure and comprising a wear-resistant brake disc (1) and a brake mounting cap (2) for connecting the wear-resistant brake disc and a brake hub; wear-resisting brake disc (1) is annular bilayer structure, including two-layer braking face (101) about including, the braking face of upper strata forms round first tooth belt (103) along its inner circle, braking mounting cap (2) is integrated into one piece's stamping workpiece, and it includes end cover (201) of disc shape and encloses into curb plate (202) of round, and curb plate (202) are outwards bent the arch and are formed round second tooth belt (205), and embedding in first tooth belt (103) of wear-resisting brake disc (1) is taken in the bidentate area (205) of braking mounting cap (2).

2. A combined brake disc according to claim 1, wherein the wear-resistant brake disc (1) comprises an upper layer of braking surface (101) and a lower layer of braking surface (101), a plurality of ribs (102) are arranged between the two layers of braking surfaces, the plurality of ribs (102) are uniformly distributed along the diameter direction of the braking surfaces, and an air channel is formed between two adjacent ribs.

3. A combined brake disc according to claim 1, wherein a ring of raised clips (104) are distributed on the first toothed belt (103), and the edges of the clips are rounded.

4. The combined brake disc of claim 1, wherein the end cover (201) is provided with a mounting hole (203) at the center, a plurality of connecting holes (204) are formed around the mounting hole, and each connecting hole is uniformly distributed around the mounting hole (203) at equal intervals.

5. The combined brake disc of claim 1, wherein the end cap (201) has at least one positioning hole (208) formed therein.

6. The combined brake disc of claim 1, wherein the recess of the second toothed belt (205) is provided with a slot (206) and a stop block (207).

7. The combined brake disc of claim 6, wherein the elongated hole (206) is formed at the bottom edge, the stopper (207) is located at the middle part, and the plurality of elongated holes (206) and the stopper (207) are installed at intervals to form a circle.