CN107676410B

CN107676410B - Automobile brake disc structure

Info

Publication number: CN107676410B
Application number: CN201710991943.9A
Authority: CN
Inventors: 宋元锋; 彭庆丰
Original assignee: Hozon New Energy Automobile Co Ltd
Current assignee: Hozon New Energy Automobile Co Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2023-09-01
Anticipated expiration: 2037-10-23
Also published as: CN107676410A

Abstract

The application relates to the technical field of automobile braking, in particular to an automobile brake disc structure, which comprises a middle support disc body, wherein a friction disc body is respectively arranged and fixed at the left side and the right side of the middle support disc body, the middle support disc body is provided with a center support column which is positioned in the axial direction along the left-right direction, the end parts of the left side and the right side of the center support column are respectively arranged and fixed with the friction disc bodies at the left side and the right side, the friction disc body comprises a center round cover which covers the end parts and is fixedly arranged with the center support column, the center round cover comprises a cylindrical cover body sleeved on the end parts, and a cover top which is integrally connected with the top of the cover body and is opposite to the end surface of the end parts and seals the end surface, the bottom of the cover body is integrally connected with an annular friction disc which is in an annular shape along the axial direction along the left-right direction, and the weight distribution is reasonable, the structure is more optimized, the friction effect is good, and the service life is long.

Description

Automobile brake disc structure

Technical Field

The application relates to the technical field of automobile braking, in particular to an automobile brake disc structure.

Background

The conventional brake disc used for the automobile is a friction coupling part of a disc brake, and the friction coupling part has the strength and rigidity required by the brake disc as a component, and also has the friction coefficient which is as high and stable as possible, proper wear resistance, heat dissipation, heat capacity and the like, and the existing cast iron brake disc has high weight and larger non-suspension mass; all-aluminum brake discs, while lightweight, are resistant to heat deterioration and are less resistant to wear. The ceramic brake disc integrating the advantages of the two has high requirements on performance, but has high cost and long production period, and is not suitable for medium-low cars.

Disclosure of Invention

The application aims to provide an automobile brake disc structure which is reasonable in weight distribution, more optimized in structure, good in friction effect and long in service life.

The technical aim of the application is realized by the following technical scheme: the utility model provides an automobile brake disc structure, includes the intermediate support disk body and the intermediate support disk body left and right sides installs respectively and is fixed with a friction disk body, the intermediate support disk body has the center support post that is located the axial along left and right directions, the tip of the left and right sides of center support post is fixed with the friction disk body installation of left and right sides respectively, the friction disk body including the lid be in on the tip and with the center circular cap of center support post installation is fixed, the center circular cap includes that cylindrical cover establishes lid on the tip and lid top an organic whole be connected with the terminal surface of tip sets up relatively and seals the caping of terminal surface, the bottom an organic whole of lid is connected with the annular friction disk of the annular shape of axial along left and right directions.

Among the above-mentioned technical scheme, through the split structure of this kind of hamburger formula for the structural compatibility between each disk body is better, through the stability of middle structure, carries out the friction operation of friction disk body in both sides, and friction effect also can be better, and each disk body of itself is structural design and position distribution moreover, makes the stability of disk body better, and the distribution of total weight is more reasonable, and the atress is according to optimizing, and the cost can be effectively controlled, and physical properties such as wearability, heat resistance, thermal diffusivity and heat capacity all can be effectively promoted.

In a preferred aspect of the present application, the center support column is provided with a main mounting communication hole penetrating left and right along a center axis thereof and forms the end portion in a ring shape, and the cap top is provided with a sub mounting communication hole penetrating left and right along a center axis thereof and communicating with the main mounting communication hole.

As a preferable aspect of the present application, the end portion is provided with a plurality of central inner bolt holes extending from the end face toward the inside of the central support column along the axial direction of the central support column, the central inner bolt holes being distributed in a circumferential array on the end face of the end portion, and the cover top is provided with central outer bolt holes penetrating left and right along the axial direction thereof and corresponding to the central inner bolt holes.

As a preferable aspect of the present application, the middle support disc further includes a cylindrical reinforcing ring sleeved at a position between the left and right end portions of the outer peripheral portion of the central support column, and a plurality of reinforcing mounting ribs integrally connected to the outer peripheral portion of the reinforcing ring and distributed in a circumferential array in a circumferential direction of the reinforcing ring.

Preferably, the reinforcing mounting bone includes a base plate integrally connected to an outer peripheral portion of the reinforcing ring, and an extension mounting plate integrally connected to a side of the base plate opposite to the reinforcing ring.

In the present application, the radial cross section of the base plate in the radial direction of the center support column is in the shape of an isosceles trapezoid, and the radial cross section of the extension mounting plate in the radial direction of the center support column is rectangular.

As a preferable aspect of the present application, each of the extension mounting plates is provided with an inner peripheral bolt hole along an axial direction of the center support column, and the annular friction plate is provided with an outer peripheral bolt hole corresponding to the inner peripheral bolt hole.

As a preferable aspect of the present application, the annular friction plate includes a main friction plate integrally connected to a bottom of the cover body and having an annular shape, and an outer peripheral protection plate integrally connected to an outer peripheral edge of the main friction plate, wherein the outer peripheral protection plate is provided with the outer peripheral bolt hole.

Preferably, the middle support tray is an aluminum tray.

Preferably, the friction plate body is a cast iron plate body.

The application has the beneficial effects that: the structure is redesigned, the split type installation integrated configuration is adopted to the structure for stability, compatibility to structure itself all have very big help, and not only the whole distribution of weight, the whole distribution of atress are more optimized, and friction effect is better, plays fine braking effect, simultaneously, still is difficult to damage, and physical properties such as wear resistance, heat resistance, thermal diffusivity and heat capacity of whole structure obtain very big promotion.

Drawings

FIG. 1 is a schematic perspective view of a disassembled state according to an embodiment of the present application;

fig. 2 is a schematic perspective view of an assembled structure according to an embodiment of the present application.

In the figure: 1. the middle support disc body, 2, the friction disc body, 3, the center support column, 30, the end part, 20, the center circular cap, 201, the cover body, 301, the end face, 202, the cover top, 21, the annular friction disc, 41, the main installation communication hole, 42, the auxiliary installation communication hole, 43, the heat dissipation hole, 51, the center inner side bolt hole, 52, the center outer side bolt hole, 6, the reinforcing ring, 60, the reinforcing installation bone, 601, the base plate, 602, the extension installation plate, 71, the inner side outer periphery bolt hole, 72, the outer side outer periphery bolt hole, 211, the main friction plate, 212 and the outer periphery protection plate.

Detailed Description

The following specific examples are intended to be illustrative of the application and are not intended to be limiting, as modifications of the application will be apparent to those skilled in the art upon reading the specification without inventive contribution thereto, and are intended to be protected by the patent law within the scope of the appended claims.

As shown in fig. 1 and 2, an automobile brake disc structure includes a middle support disc 1, and a friction disc 2 is respectively mounted and fixed on the left and right sides of the middle support disc 1, the middle support disc 1 has a center support column 3 located axially along the left and right directions, end portions 30 on the left and right sides of the center support column 3 are respectively mounted and fixed with the friction disc 2 on the left and right sides, the friction disc 2 includes a center dome 20 covering the end portions 30 and mounted and fixed with the center support column 3, the center dome 20 includes a cylindrical cover body 201 sleeved on the end portions 30, and a cover top 202 integrally connected with the top of the cover body 201, the cover top is disposed opposite to an end face 301 of the end portion 30 and seals the end face 301, and a ring-shaped friction disc 21 axially along the left and right directions is integrally connected with the bottom of the cover body 201. The axial length of the central support column 3 is preferably greater than that of the cover 201, the central support column 3 is a column with a cylindrical outer contour, the integral connection mode in the application can be realized by adopting the same metal integral molding casting or welding process, and the end face 301 is not necessarily completely shielded, so that the end face 301 is not necessarily shielded, and the effects of limiting and positioning can be achieved only by shielding a part of the end face. In this way, a middle supporting disc body 1 is arranged in the middle, then, a friction disc body 2 is respectively arranged on the corresponding side of the left end part and the right end part of the middle supporting disc body 1, and the friction braking effect is achieved through the friction surface of the friction disc body 2, which is close to the outer side of the middle supporting disc body 1.

Further, the center support column 3 is provided with a main mounting communication hole 41 penetrating from left to right along its center axis and is formed in a ring shape at the end 30, and the cap top 202 is provided with a sub mounting communication hole 42 penetrating from left to right along its center axis and communicating with the main mounting communication hole 41. The main mounting communication hole 41 and the sub mounting communication hole 42 are provided so as to be capable of facilitating mounting of a connection member such as a connection shaft, and are connected to the vehicle body by the connection member, and the connection member can be connected to the brake disc through the main mounting communication hole 41 and the sub mounting communication holes 42 on both sides, and simultaneously, the assembly with the vehicle body is completed. The hole diameter of the main mounting communication hole 41 is preferably set larger than that of the sub mounting communication hole 42, which allows the cost of the intermediate support plate body 1 to be reduced while facilitating the design of the heat radiation structure such as the subsequent heat radiation ventilation hole.

The end 30 is provided with a plurality of central inner bolt holes 51 which are formed in the end 301 of the end 30 and extend from the end 301 toward the inside of the central support column 3 along the axial direction of the central support column 3 in a circumferential array, and the cover top 202 is provided with central outer bolt holes 52 which penetrate left and right along the axial direction and correspond to the central inner bolt holes 51. In this way, the locking installation is performed from the outside axially by bolts through the center outside bolt hole 52 and the center inside bolt hole 51. Next, a circle of center outside bolt holes 52 corresponding to the center inside bolt holes 51 are formed in the cap top 202 and are also distributed in a circumferential array, and a circle of heat dissipation holes 43 in a circumferential array is preferably formed between the center outside bolt holes 52 and the sub-mounting communication holes 42, and the number of heat dissipation holes 43 in the same cap top 202 may be smaller than the number of center outside bolt holes 52, for example, 6 center outside bolt holes 52 and 4 heat dissipation holes 43. The main mounting communication hole 41 may be sized so that the heat dissipation hole 43 communicates with it in the axial direction, facilitating heat dissipation and ventilation.

Still further, the middle support plate 1 further includes a cylindrical reinforcing ring 6 sleeved at a position between the left and right end portions 30 of the outer peripheral portion of the central support column 3, and a plurality of reinforcing mounting ribs 60 integrally connected to the outer peripheral portion of the reinforcing ring 6 and distributed in a circumferential array in the circumferential direction of the reinforcing ring 6. This design is with promoting holistic structural strength, simultaneously, improves the effect of brake, and the material that reinforcing ring 6 and reinforcing installation bone 60 adopted can keep unanimous with the material of central support post 3, all can adopt aluminum material, like this, and the fixed mode of cup jointing of central support post 3 and reinforcing ring 6 also can adopt an organic whole to be connected, and then central support post 3, reinforcing ring 6 and reinforcing installation bone 60 can be through integrated into one piece casting connection once only formation for middle support disk body 1 becomes an aluminium system disk body, and of course this is only one kind of mode, and for example, reinforcing ring 6 cup joints on central support post 3 can adopt modes such as bolt fastening, perhaps reinforcing ring 6 and reinforcing installation bone 60 adopt other metal material. Similarly, the reinforcing attachment bone 60 includes a base plate 601 integrally connected to the outer peripheral portion of the reinforcing ring 6, and an extension attachment plate 602 integrally connected to the base plate 601 on the side opposite to the reinforcing ring 6. Further, the radial cross section of the base plate 601 in the radial direction of the central support column 3 is in an isosceles trapezoid shape, and the radial cross section of the extension mounting plate 602 in the radial direction of the central support column 3 is in a rectangular shape, so that the left side surface and the right side surface of the base plate 601 form sloping surfaces, and as will be described later, once the sloping surfaces are designed into the sloping surface structure, the base plate has a better matching effect with the annular friction plate 21, and of course, the lower bottom edge of the isosceles trapezoid shape is positioned at a position integrally connected with the reinforcing ring 6. Of course, the base plate 601 and the extension mounting plate 602 do not necessarily have such a structural shape, and other structures in which slopes are formed on both the left and right sides in the axial direction are also possible. In addition, the size of the spacing distance between adjacent reinforcing mounting bones 60 in the circumferential direction of the reinforcing ring 6 is preferably smaller than the extension length of the reinforcing mounting bones 60 themselves in the circumferential direction of the reinforcing ring 6.

Next, each of the extension mounting plates 602 is provided with an inner peripheral bolt hole 71 along the axial direction of the center support column 3, and the annular friction plate 21 is provided with an outer peripheral bolt hole 72 corresponding to the inner peripheral bolt hole 71. Thus, through the bolts passing through the inner peripheral bolt holes 71 and the outer peripheral bolt holes 72, and then locking, further mounting and fixing are performed, and each of the extension mounting plates 602 is preferably provided with one inner peripheral bolt hole 71 in the central region.

The annular friction disc 21 comprises a main friction plate 211 with an annular shape integrally connected with the bottom of the cover 201 and an outer circumference protection plate 212 with an annular shape integrally connected with the outer circumference edge of the main friction plate 211, the outer circumference protection plate 212 is provided with the outer circumference bolt holes 72, the outer circumference protection plate 212 is oppositely arranged and abutted to the extension mounting plate 602 and then locked by screws, the position of the main friction plate 211 is designed to be opposite to and abutted against the base plate 601, two side surfaces of the main friction plate 211 are preferably designed to be round table-shaped side surfaces, so that the two side surfaces also form a slope with an inclined angle, the round table-shaped side surface of the main friction plate 211 on one side of the base plate 601 can be better abutted against the preferred slope of the base plate 601, the performance of the whole structure is further improved, meanwhile, the side surface of the main friction plate 211 on the outer side, namely the side surface on the side opposite to the base plate 601 is used as the most main friction surface for braking for friction braking, the two side surfaces of the main friction plate 211 are preferably round table-shaped side surfaces are all round side surfaces, and the side surfaces of the main friction plate 211 are preferably round table-shaped side surfaces are the bottom of the main surface 201, and the main surface is the main body, and the main surface is the diameter section of the main body is more than the main surface, and the main surface is smaller than the main surface of the main surface is more than the main surface is the main, and the main surface is the main surface, and the main surface is the main side is the main.

In addition, the friction disk 2 is preferably provided as a cast-iron disk, and further, as a gray cast-iron disk, this design can be realized in such a way that the four parts of the friction disk 2: the cover top 202, the cover body 201, the main friction plate 211 and the outer peripheral protection plate 212 are integrally cast and connected by a material, preferably cast iron, and further gray cast iron is selected.

Claims

1. An automobile brake disc structure, characterized in that: the friction disc comprises a middle support disc body (1) and friction disc bodies (2) which are respectively arranged and fixed on the left side and the right side of the middle support disc body (1), wherein the middle support disc body (1) is provided with a center support column (3) which is positioned in the axial direction along the left and right directions, end parts (30) on the left side and the right side of the center support column (3) are respectively arranged and fixed with the friction disc bodies (2) on the left side and the right side, the friction disc bodies (2) comprise center round covers (20) which are covered on the end parts (30) and are fixedly arranged with the center support column (3), the center round covers (20) comprise cylindrical cover bodies (201) sleeved on the end parts (30) and cover tops (202) which are integrally connected with the top parts of the cover bodies (201) and are arranged opposite to end faces (301) of the end parts (30), and annular friction discs (21) which are axially connected with the bottom parts of the cover bodies (201) in the annular shapes along the left and right directions;

the end part (30) is provided with a plurality of central inner bolt holes (51) which are formed in a circumferential array on the end surface (301) of the end part (30) and extend from the end surface (301) to the inside of the central support column (3) along the axial direction of the central support column (3), and the cover top (202) is provided with central outer bolt holes (52) which are penetrated left and right along the axial direction and correspond to the central inner bolt holes (51);

the center support column (3) is provided with a main installation communication hole (41) which penetrates left and right along the center axis and forms the annular end part (30), and the cover top (202) is provided with a secondary installation communication hole (42) which penetrates left and right along the center axis and is communicated with the main installation communication hole (41).

2. An automotive brake disc construction according to claim 1, characterized in that: the middle support disc body (1) further comprises a cylindrical reinforcing ring (6) sleeved at the position, between the left end part and the right end part (30), of the outer peripheral part of the center support column (3), and a plurality of reinforcing mounting bones (60) which are integrally connected with the outer peripheral part of the reinforcing ring (6) and distributed in a circumferential array in the circumferential direction of the reinforcing ring (6).

3. An automotive brake disc construction according to claim 2, characterized in that: the reinforcing mounting bone (60) comprises a base plate (601) integrally connected with the outer peripheral part of the reinforcing ring (6) and an extending mounting plate (602) integrally connected with one side of the base plate (601) opposite to the reinforcing ring (6).

4. A vehicle brake disc structure according to claim 3, wherein: the radial cross section of the base plate (601) in the radial direction of the central supporting column (3) is in an isosceles trapezoid shape, and the radial cross section of the extension mounting plate (602) in the radial direction of the central supporting column (3) is in a rectangular shape.

5. A vehicle brake disc structure according to claim 3, wherein: each extending mounting plate (602) is axially provided with an inner peripheral bolt hole (71) along the central supporting column (3), and the annular friction plate (21) is provided with an outer peripheral bolt hole (72) corresponding to the inner peripheral bolt hole (71).

6. An automotive brake disc construction according to claim 5, characterized in that: the annular friction disk (21) comprises a main friction plate (211) which is integrally connected with the bottom of the cover body (201) and is in an annular shape, and an outer periphery protection plate (212) which is integrally connected with the outer ring edge of the main friction plate (211), wherein the outer periphery protection plate (212) is provided with an outer periphery bolt hole (72).

7. An automotive brake disc construction according to claim 1, characterized in that: the middle support disc body (1) is an aluminum disc body.

8. An automotive brake disc construction according to claim 1, characterized in that: the friction disc body (2) is a cast iron disc body.