CN213176568U - Ventilation type automobile brake disc - Google Patents

Abstract

The utility model relates to a ventilation formula car brake disc belongs to car brake disc field. The brake disc comprises a pair of brake disc bodies, wherein the brake disc bodies are of an annular structure, the two brake disc bodies are fixedly connected into a whole through heat dissipation ribs distributed at intervals, the brake disc mounting cap and the brake disc bodies are coaxial, the brim of the brake disc mounting cap is fixedly connected with the edge of the inner diameter of one of the brake disc bodies into a whole, and the neck of the brake disc is arranged at the joint of the brake disc body and the brim of the brake disc mounting cap; the heat dissipation muscle is including long heat dissipation muscle and short heat dissipation muscle, and long heat dissipation muscle and short heat dissipation muscle are radial interval distribution in turn around the axle center of brake disc body, and the inner of long heat dissipation muscle extends to the brake disc body internal diameter outside and is connected as an organic wholely with brake disc neck fillet, and the inner of short heat dissipation muscle extends to and leaves the inner gap between the position and the interior border of the interior border that is close to the brake disc body. The utility model discloses can take away a large amount of heats of brake disc when the car braking, the cooling of brake disc accelerates.

Description

Ventilation type automobile brake disc

Technical Field

The utility model belongs to the technical field of the car brake disc, a effectively improve ventilation formula car brake disc that heat altered shape structure is related to.

Background

At present, national regulations have stricter requirements on oil consumption and carbon dioxide emission of automobiles, and each host factory has stricter control on performance and cost of the automobiles. In addition to meeting the stringent performance requirements of the customer, the brake discs must also be weight (cost) advantageous to service.

The automobile brake disc is connected with a brake disc mounting surface on a half shaft in a butt joint mode through a brake disc mounting brim, the brake disc is subjected to stress deformation, thermal expansion caused by heating and the like in actual work, so that the brake surfaces on two sides of the brake disc are subjected to buckling deformation relative to the brake disc mounting surface, the heated buckling deformation of the traditional brake disc is over 0.2mm, the buckling deformation of the brake disc can cause brake vibration and abnormal brake sound, and even cause the brake failure of an automobile, the controllability and riding comfort of the automobile are reduced, the brake energy consumption is increased, and the safety risk is increased; therefore, an automotive brake disc structure that is effective in reducing thermal deformation (coming) when designing a brake disc is necessary.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a ventilated automobile brake disc capable of effectively reducing thermal deformation.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a ventilated formula car brake disc, includes the brake disc body with the axle center that a pair of symmetry set up, and the brake disc body is the loop configuration, and the heat dissipation muscle fixed connection through interval distribution is as an organic whole between two brake disc bodies, and brake disc installation cap and brake disc body are with the axle center, and the brim of a hat of brake disc installation cap is as an organic whole with the edge fixed connection of the internal diameter of one of them brake disc body, and the brim of a hat junction of brake disc body and brake disc installation cap is the brake disc neck.

The heat dissipation muscle is including long heat dissipation muscle and short heat dissipation muscle, and long heat dissipation muscle is radial interval distribution in turn with the axle center that short heat dissipation muscle surrounds the brake disc body, and the inner of long heat dissipation muscle extends to the brake disc body internal diameter outside and is connected as an organic wholely with brake disc neck fillet, and the inner of short heat dissipation muscle extends to and leaves the inner gap between the position and the inner border of the inner border that is close to the brake disc body, and the inner gap will be short heat dissipation muscle and the space intercommunication between the long heat dissipation muscle of adjacent both sides.

Further, the outer end of the short heat dissipation rib extends to the outer edge of the brake disc body.

Furthermore, the outer end of the long radiating rib extends to the outer edge close to the brake disc body, but an outer gap is reserved between the outer edge and the outer edge.

Furthermore, the distance of the outer gap is 5-20 mm.

Furthermore, the distance of the inner gap is 5-20 mm.

The beneficial effects of the utility model reside in that:

the utility model discloses at brake disc neck department and the heat dissipation muscle direct connection of different in size, the air intake passageway that the heat dissipation muscle of different in size formed is bigger than conventional passway mouth sectional area, has consequently increased the air intake flow and the heat radiating area of brake disc, can take away a large amount of heats of brake disc during the car braking, the cooling of brake disc with higher speed.

The utility model discloses relatively longer heat dissipation muscle direct connection brake disc neck fillet R department can directly effectively restrain the brake disc body because of the thermal deformation that the temperature risees and arouse, has prevented brake shake, braking abnormal sound, the braking inefficacy that the warp of the relative brake disc installation cap of brake disc body and consequently lead to, and then has promoted the control of car, take the travelling comfort, has reduced the braking energy consumption, has reduced safe risk.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a CAE analysis result diagram of the thermal buckling deformation of the brake disc of the present invention;

fig. 3 is a CAE analysis result graph of the conventional brake disc under thermal buckling deformation.

Reference numerals:

1. a brake disc body; 11. an inner gap; 12. an outer gap; 2. a brake disc mounting cap; 21. a brake disc neck; 3. long heat dissipation ribs; 4. short heat dissipation ribs.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

As shown in fig. 1, for a ventilated type automobile brake disc, including the coaxial brake disc body 1 that a pair of symmetry set up, brake disc body 1 is the loop configuration, and the heat dissipation muscle fixed connection through interval distribution is as an organic whole between two brake disc bodies 1, and brake disc installation cap 2 is coaxial with brake disc body 1, and the brim of a hat of brake disc installation cap 2 is as an organic whole with the edge fixed connection of the internal diameter of one of them brake disc body 1. The junction of the brake disc body 1 and the brake disc mounting cap 2 is a brake disc neck 21.

The heat dissipation muscle includes long heat dissipation muscle 3 and short heat dissipation muscle 4, and short heat dissipation muscle 4 slightly is shorter than long heat dissipation muscle 3, and long heat dissipation muscle 3 and short heat dissipation muscle 4 are radial interval evenly distributed in turn around the axle center of brake disc body 1, and the inner of long heat dissipation muscle 3 extends to the brake disc body 1 internal diameter outside and is connected as an organic whole with brake disc neck 21 fillet, and the outer end of long heat dissipation muscle 3 extends to and is close to the outer border of brake disc body 1 but leaves an outer gap 12 between the border and the outer border, and the distance of outer gap 12 is 5-20 millimeters.

An inner gap 11 is reserved between the position of the inner end of the short radiating rib 4 extending to the inner edge close to the brake disc body 1 and the inner edge, and the distance of the inner gap 11 is 5-20 mm. The outer ends of the short radiating ribs 4 extend to the outer edge of the brake disc body 1. The inner gap 11 communicates the short heat dissipation ribs 4 and the spaces between the long heat dissipation ribs 3 on two adjacent sides of the short heat dissipation ribs to form a heat dissipation channel, so that heat dissipation is facilitated.

The utility model discloses a theory of operation:

when in actual use, the neck 21 of the brake disc is directly connected with the long radiating ribs 3, the flow of an air inlet formed by the long radiating ribs 4 and the short radiating ribs 4 at the air inlet of the brake disc is larger than the conventional air inlet flow, the brake disc accelerates the cooling of the brake disc after braking, meanwhile, the heat dissipation ribs 3 exceed the inner diameter and are connected with the neck 21 of the brake disc in a fillet manner, so that the thermal deformation of the brake disc body 1 caused by temperature rise can be effectively inhibited, the buckling deformation of the brake disc body 1 relative to the brake disc mounting cap 2, the buckling deformation of the brake disc and the temperature rise are prevented, please refer to FIG. 2, in CAE analysis, the thermal buckling deformation of the utility model is less than 0.04mm, which is greatly superior to the traditional brake disc, effectively prevents the problems of brake shaking, abnormal brake sound, brake failure and the like caused by the thermal buckling deformation of the brake disc, and then the controllability and the riding comfort of the automobile are improved, the braking energy consumption is reduced, and the safety risk is reduced.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims (5)

1. The utility model provides a ventilation formula car brake disc which characterized in that: the brake disc comprises a pair of brake disc bodies (1) which are symmetrically arranged and coaxial, wherein the brake disc bodies (1) are of an annular structure, the two brake disc bodies (1) are fixedly connected into a whole through heat dissipation ribs which are distributed at intervals, the brake disc mounting cap (2) and the brake disc bodies (1) are coaxial, the brim of the brake disc mounting cap (2) is fixedly connected with the edge of the inner diameter of one of the brake disc bodies (1) into a whole, and the neck (21) of the brake disc is arranged at the joint of the brake disc bodies (1) and the brim of the brake disc mounting cap (2);

the heat dissipation muscle is including long heat dissipation muscle (3) and short heat dissipation muscle (4), axle center that brake disc body (1) was surrounded in long heat dissipation muscle (3) and short heat dissipation muscle (4) is radial interval distribution in turn, the inner of long heat dissipation muscle (3) extends to brake disc body (1) internal diameter outside and is connected as an organic wholely with brake disc neck (21) fillet, the inner of short heat dissipation muscle (4) extends to and leaves inner gap (11) between the position and the interior border of the interior border that is close to brake disc body (1), inner gap (11) will be short heat dissipation muscle (4) and the space intercommunication between the long heat dissipation muscle (3) of adjacent both sides.

2. The ventilated vehicle brake disc of claim 1, wherein: the outer end of the short heat dissipation rib (4) extends to the outer edge of the brake disc body (1).

3. The ventilated vehicle brake disc of claim 1, wherein: the outer end of the long radiating rib (3) extends to the outer edge close to the brake disc body (1) and an outer gap (12) is reserved between the outer edge and the outer edge.

4. The ventilated vehicle brake disc of claim 3, wherein: the distance of the outer gap (12) is 5-20 mm.

5. The ventilated vehicle brake disc of claim 1, wherein: the distance of the inner gap (11) is 5-20 mm.

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