CN210686787U

CN210686787U - Reinforced brake drum

Info

Publication number: CN210686787U
Application number: CN201921634850.1U
Authority: CN
Inventors: 张士英
Original assignee: Longyao County Longtaisheng Machinery Manufacturing Co Ltd
Current assignee: Longyao County Longtaisheng Machinery Manufacturing Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-05
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to a vehicle braking technical field especially relates to a strenghthened type brake drum. Comprises a drum body; a flange surface is arranged on one side of the drum body, and a reinforcing ring is arranged on the outer circumference of the other side of the drum body; a reinforcing ring is arranged on the outer circumference of the drum body; a plurality of first heat dissipation grooves and a plurality of second heat dissipation grooves are formed in two sides of the reinforcing ring; the inner side of the drum body is provided with a braking surface. The flange face is provided with a plurality of mounting holes and a plurality of heat dissipation concave stations. The utility model adopts the scheme that the heat dissipation concave platform is arranged on the flange surface, thereby promoting the heat inside the brake drum to be dissipated outwards; the scheme that the first radiating groove and the second radiating groove are arranged on the outer circumference of the brake drum body is adopted, so that the radiating capacity of the brake drum is enhanced; the scheme that the reinforcing ring and the reinforcing ring are arranged on the outer circumference of the brake drum body is adopted, so that the rigidity of the brake drum body is improved.

Description

Reinforced brake drum

Technical Field

The utility model relates to a vehicle braking technical field especially relates to a strenghthened type brake drum.

Background

The brake drum is an important element of a drum brake. At present, the mainstream brake drum brake is of an internal expanding type, a brake shoe of the brake drum brake is positioned on the inner side of the brake drum, and the brake shoe is expanded outwards to rub the inner side of the brake drum during braking, so that the purpose of braking is achieved. Drum brakes are relatively inexpensive and brake shoes are more durable than disc brakes and are therefore more widely used. However, the drum brake has poor heat dissipation, and a large amount of heat is collected in the braking process, so that the temperature of the brake drum is increased, the phenomena of brake recession and vibration are easy to occur, and the braking efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a reinforced brake drum aiming at the technical defects, and the scheme of arranging a heat dissipation concave platform on the flange surface is adopted to promote the heat inside the brake drum to be dissipated outwards; the scheme that the first radiating groove and the second radiating groove are arranged on the outer circumference of the brake drum body is adopted, so that the radiating capacity of the brake drum is enhanced; the scheme that the reinforcing ring and the reinforcing ring are arranged on the outer circumference of the brake drum body is adopted, so that the rigidity of the brake drum body is improved.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a reinforced brake drum comprises a drum body; a flange surface is arranged on one side of the drum body, and a reinforcing ring is arranged on the outer circumference of the other side of the drum body; a reinforcing ring is arranged on the outer circumference of the drum body; a plurality of first heat dissipation grooves and a plurality of second heat dissipation grooves are formed in two sides of the reinforcing ring; the inner side of the drum body is provided with a braking surface.

Further optimizing the technical scheme, a plurality of mounting holes and a plurality of heat dissipation concave stations are arranged on the flange surface; the bottom surface of the heat dissipation concave table is in a parabola shape, the opening of the parabola is communicated with the outer circumference of the drum body, and the top of the parabola is provided with a through hole communicated with the inside of the drum body; the heat dissipation concave station is characterized by internal die drawing from inside to outside in the depth direction, and the die drawing angle is 35-45 degrees.

Further optimizing the technical scheme, the reinforcing ring comprises a ring body and a web plate; the cross section of the web plate is in an isosceles trapezoid shape; and an arc-shaped transition zone is arranged at the joint of the web plate and the ring body.

Further optimizing the technical scheme, the depth of the first heat dissipation groove is 0.6-0.8 time of the thickness of the circumferential wall body of the brake drum; the bottom surface of the first heat dissipation groove is in an isosceles triangle shape, and the bottom surface of the first heat dissipation groove is in an outward die drawing characteristic from the inside to the outside of the drum body in the depth direction, and the die drawing angle is 40-50 degrees; the first radiating grooves have two orientations, wherein the vertex of the isosceles triangle faces the reinforcing ring, the bottom edge of the isosceles triangle faces the reinforcing ring, and the first radiating grooves in the two orientations are alternately distributed at the same side of the reinforcing ring; the first heat dissipation grooves on the two sides of the reinforcing ring are symmetrically distributed by taking the reinforcing ring as a symmetrical plane.

Further optimizing the technical scheme, the depth of the second heat dissipation groove is 0.6-0.8 times of the thickness of the circumferential wall body of the brake drum; the bottom surface of the second heat dissipation groove is circular, and is characterized in that the second heat dissipation groove is drawn outwards from the inside to the outside of the drum body in the depth direction, and the drawing angle is 40-50 degrees; on each side of the reinforcement ring, the second heat dissipation grooves are distributed in the middle of two adjacent first heat dissipation grooves.

Compared with the prior art, the utility model has the advantages of it is following: 1. by adopting the scheme of arranging the heat dissipation concave platform on the flange surface, the structure promotes the heat inside the brake drum to be dissipated outwards, and the temperature inside the brake drum can be effectively reduced; 2. The scheme that the first radiating groove and the second radiating groove are arranged on the outer circumference of the brake drum body is adopted, so that the radiating capacity of the brake drum is enhanced, and the heat is promoted to be diffused into the air through the brake drum; 3. the scheme that the reinforcing ring and the reinforcing ring are arranged on the outer circumference of the brake drum body is adopted, the rigidity of the brake drum body is increased by the structure, the deformation of the drum body can be prevented, and the risk of cracking of the drum body is reduced.

Drawings

Fig. 1 is a schematic structural view of an enhanced brake drum.

Fig. 2 is a schematic view of the internal structure of an enhanced brake drum.

FIG. 3 is a cross-sectional view of an enhanced brake drum.

In the figure: 1. a drum body; 2. a reinforcement ring; 3. a reinforcing ring; 4. a first heat sink; 5. a second heat sink; 6. a flange face; 7. a braking surface; 8. mounting holes; 9. a heat dissipation concave station; 21. a ring body; 22. a web.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: referring to fig. 1-3, an enhanced brake drum includes a drum body 1; the left side of the drum body 1 is provided with a flange surface 6; the outer circumference of the drum body 1 is provided with a reinforcing ring 2, the reinforcing ring 2 can increase the strength 1 of the drum body and prevent the drum body 1 from deforming, and the web 22 and the ring body 21 can play a role in heat dissipation; a first heat dissipation groove 4 and a second heat dissipation groove 5 are formed in two sides of the reinforcing ring 2; the inner side of the drum body 1 is provided with a braking surface 7; the outer circumference of the right end of the drum body 1 is provided with a reinforcing ring 3, so that the strength of the drum body 1 can be enhanced, the heat capacity of the drum body 1 can be increased, and the temperature rise is lower under the same heat. The flange surface 6 is provided with a mounting hole 8 and a heat dissipation concave platform 9; the bottom surface of the heat dissipation concave platform 9 is in a parabola shape, the opening of the parabola is communicated with the outer circumference of the drum body 1, and the top of the parabola is provided with a through hole communicated with the inside of the drum body 1; the heat dissipation concave station 9 is characterized by internal pattern drawing from the right side to the left side in the depth direction, and the pattern drawing angle is 35-45 degrees; the design can furthest increase the heat dissipation capacity of the heat dissipation concave station 9 under the condition of keeping the strength of the flange plate. The reinforcing ring 2 comprises a ring body 21 and a web 22; the cross section of the web plate 22 is in an isosceles trapezoid shape, and the deformation resistance of the drum body 1 is enhanced by adopting the principle of large-mass support; the joint of the web plate 22 and the ring body 21 is provided with an arc-shaped transition zone, so that the damage of a workpiece caused by stress concentration can be prevented. The depth of the first heat dissipation groove 4 is 0.6-0.8 times of the thickness of the circumferential wall body of the brake drum, the bottom surface of the first heat dissipation groove 4 is in an isosceles triangle shape and is in an outward die drawing characteristic from the inside to the outside of the drum body 1 in the depth direction, and the die drawing angle is 40-50 degrees. The first heat dissipation grooves 4 have two orientations, one is that the summit of isosceles triangle faces the reinforcing ring 2, the other is that the base of isosceles triangle faces the reinforcing ring 2, on the same side of the reinforcing ring 2, the first heat dissipation grooves 4 of two orientations are alternately distributed at intervals, the first heat dissipation grooves 4 on two sides of the reinforcing ring 2 are symmetrically distributed by taking the reinforcing ring 2 as a symmetrical plane, and the design can ensure the torsion resistance of the drum body 1 in the circumferential direction and also ensure the temperature uniformity of the wall body of the brake drum. The depth of the second heat dissipation groove 5 is 0.6-0.8 times of the thickness of the circumferential wall body of the brake drum; the bottom surface of the second heat dissipation groove 5 is circular, and is characterized in that the die drawing is outward from the inside to the outside of the drum body 1 in the depth direction, and the die drawing angle is 40-50 degrees; the design can not only enhance the heat dissipation capability of the second heat dissipation groove 5 to the maximum extent, but also prevent the deformation caused by strength reduction due to the excessively thin bottom of the second heat dissipation groove 5. On each side of the reinforcement ring 2, a second heat sink 5 is distributed in the middle of two adjacent first heat sinks 4. The design can enhance the heat dissipation capacity of the drum body 1 and make the temperature of the outer wall of the brake drum uniform.

In use, as shown in fig. 1-3, the heat generated by braking heats the braking surface 7, which causes the inner wall of the drum body 1 to heat up and further conduct to the air inside the brake drum, and the heat is discharged from the heat dissipation concave platform 9 through the through holes. At the same time, the heat of the inner wall of the drum body 1 is conducted outwards, and a part of the heat is radiated outwards through the first heat dissipation groove 4 and the second heat dissipation groove 5, and the other part of the heat is conducted to the outer wall of the drum body 1 and is radiated outwards through the surface of the outer wall and the reinforcing ring 2. Therefore, brake recession and vibration phenomena caused by overhigh temperature rise of the brake drum are avoided, and the brake efficiency is prevented from being greatly reduced.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A strenghthened type brake drum which characterized in that: comprises a drum body (1); a flange surface (6) is arranged on one side of the drum body (1), and a reinforcing ring (3) is arranged on the outer circumference of the other side of the drum body (1); a reinforcing ring (2) is arranged on the outer circumference of the drum body (1); a plurality of first heat dissipation grooves (4) and a plurality of second heat dissipation grooves (5) are formed in two sides of the reinforcing ring (2); the inner side of the drum body (1) is provided with a braking surface (7).

2. The reinforced brake drum of claim 1, wherein: the flange surface (6) is provided with a plurality of mounting holes (8) and a plurality of heat dissipation concave stations (9); the bottom surface of the heat dissipation concave platform (9) is in a parabola shape, the opening of the parabola is communicated with the outer circumference of the drum body (1), and the top of the parabola is provided with a through hole communicated with the inside of the drum body (1); the heat dissipation concave station (9) is characterized by internal die drawing from inside to outside in the depth direction, and the die drawing angle is 35-45 degrees.

3. The reinforced brake drum of claim 1, wherein: the reinforcing ring (2) comprises a ring body (21) and a web (22); the cross section of the web plate (22) is in an isosceles trapezoid shape; and an arc-shaped transition zone is arranged at the joint of the web plate (22) and the ring body (21).

4. The reinforced brake drum of claim 1, wherein: the depth of the first heat dissipation groove (4) is 0.6-0.8 times of the thickness of the circumferential wall body of the brake drum; the bottom surface of the first heat dissipation groove (4) is in an isosceles triangle shape, and the bottom surface of the first heat dissipation groove is in an outward die drawing characteristic from the inside to the outside of the drum body (1) in the depth direction, and the die drawing angle is 40-50 degrees; the first heat dissipation grooves (4) have two orientations, wherein the vertex of the isosceles triangle faces the reinforcing ring (2), the bottom edge of the isosceles triangle faces the reinforcing ring (2), and the first heat dissipation grooves (4) in the two orientations are alternately distributed at the same side of the reinforcing ring (2) at intervals; the first heat dissipation grooves (4) on the two sides of the reinforcing ring (2) are symmetrically distributed by taking the reinforcing ring (2) as a symmetrical plane.

5. The reinforced brake drum of claim 1, wherein: the depth of the second heat dissipation groove (5) is 0.6-0.8 times of the thickness of the circumferential wall body of the brake drum; the bottom surface of the second heat dissipation groove (5) is circular, and the bottom surface of the second heat dissipation groove is in outward die drawing characteristic from the inside to the outside of the drum body (1) in the depth direction, and the die drawing angle is 40-50 degrees; on each side of the reinforcement ring (2), a second heat sink (5) is distributed in the middle of two adjacent first heat sinks (4).