CN215980560U - Reinforced composite brake drum - Google Patents
Reinforced composite brake drum Download PDFInfo
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- CN215980560U CN215980560U CN202121872481.7U CN202121872481U CN215980560U CN 215980560 U CN215980560 U CN 215980560U CN 202121872481 U CN202121872481 U CN 202121872481U CN 215980560 U CN215980560 U CN 215980560U
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- brake drum
- steel ring
- reinforced composite
- side wall
- steel
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Abstract
The reinforced composite brake drum comprises a brake drum body, wherein the brake drum body is integrally cast and molded by cast iron materials, the brake drum body comprises a bottom and a side wall formed by circumferential surrounding, and an opening is formed at one end opposite to the bottom; the steel ring is sleeved on the side wall along the circumferential direction, and at least one part of the steel ring is embedded into the side wall in the thickness direction of the side wall; the brake drum comprises a brake drum body, wherein the inner wall of the steel ring is provided with a connecting hole, and a connecting part integrally cast with the brake drum body is embedded into the connecting hole. The composite application of the bimetallic material not only meets the wear resistance of the brake drum, but also enhances the integral structural strength and the deformation-resistant rigidity of the brake drum, prolongs the service life of the brake drum and effectively avoids the danger of breaking and flying out of the brake drum.
Description
Technical Field
The utility model relates to the field of automobile brake system parts, in particular to a reinforced composite brake drum.
Background
The brake drum is used as a key part for generating braking force in a drum brake, and the structural performance of the brake drum seriously influences the driving safety of an automobile. When the existing main stream brake drum is used, the temperature of the inner wall of the brake drum is rapidly raised by the braking friction force, great temperature difference is generated between the inner wall and the outer wall, thermal stress is caused, meanwhile, the mechanical performance of the brake drum material is reduced due to the high temperature, and the fatigue reticular crack-cracking or the orifice cracking is directly caused on the inner wall of the brake drum by the expansion force generated by the brake shoe during braking.
Accordingly, there is a need for an enhanced composite brake drum that solves one or more of the problems set forth above.
SUMMERY OF THE UTILITY MODEL
To solve at least one of the above technical problems, according to an aspect of the present invention, there is provided an enhanced type composite brake drum, including:
the brake drum comprises a brake drum body and a brake drum body, wherein the brake drum body is integrally cast and molded by cast iron materials, the brake drum body comprises a bottom and a side wall formed by circumferential surrounding, and an opening is formed at one end opposite to the bottom; and
the steel ring is sleeved on the side wall along the circumferential direction, and at least one part of the steel ring is embedded into the side wall in the thickness direction of the side wall;
the brake drum comprises a brake drum body, wherein the inner wall of the steel ring is provided with a connecting hole, and a connecting part integrally cast with the brake drum body is embedded into the connecting hole.
According to still another aspect of the present invention, the connecting portion is formed of a cast iron material that flows into the connecting hole when integrally cast, and the steel ring is preferably surrounded by the molten cast iron material and is cooled and fixed.
According to another aspect of the present invention, the cross-section of the steel ring is rectangular, circular, triangular or irregular.
According to still another aspect of the present invention, the connection hole is circular, rectangular or T-shaped.
According to still another aspect of the present invention, the connection hole is a blind hole or a through hole.
According to yet another aspect of the utility model, the steel ring is disposed adjacent the opening.
According to another aspect of the present invention, the steel rings are two or more, and the two or more steel rings are sequentially disposed on the side wall along a direction perpendicular to the bottom.
According to yet another aspect of the utility model, the steel ring is integrally embedded in the side wall.
According to yet another aspect of the utility model, the steel ring is made of structural steel.
According to yet another aspect of the utility model, the steel ring is made of carbon steel.
The utility model can obtain one or more of the following technical effects:
the integrated molding technology of pre-embedding the steel ring in advance by adopting the die is adopted, the process form that the brake drum and the steel ring are compounded into a whole is improved, the concentricity and the wall thickness uniformity of the brake drum are improved, the unbalance amount of the brake drum is greatly reduced, and the binding force between the steel ring and the brake drum body is improved;
the connecting holes on the steel ring avoid the rotation of the inner ring and the outer ring caused by temperature change and material deformation;
the composite application of the bimetallic material not only meets the wear resistance of the brake drum, but also enhances the integral structural strength and the deformation-resistant rigidity of the brake drum, greatly improves the safety performance, prolongs the service life of the brake drum and effectively avoids the danger of breaking and flying out of the brake drum.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a perspective view illustrating an enhanced type composite brake drum according to a first preferred embodiment of the present invention.
Fig. 2 is a sectional view of the reinforced composite brake drum of fig. 1 taken along the direction a-a (at the coupling hole).
FIG. 3 is a cross-sectional view of the drum of FIG. 1 without the attachment holes.
Detailed Description
The best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings, wherein the detailed description is for the purpose of illustrating the utility model in detail, and is not to be construed as limiting the utility model, as various changes and modifications can be made therein without departing from the spirit and scope thereof, which are intended to be encompassed within the appended claims.
Example 1
In accordance with a preferred embodiment of the present invention, and with reference to fig. 1-3, there is provided a reinforced composite brake drum, comprising:
the brake drum comprises a brake drum body 3 and a brake drum body, wherein the brake drum body 3 is integrally cast and molded by cast iron materials, comprises a bottom and a side wall formed by circumferential surrounding, and an opening 31 is formed at one end opposite to the bottom; and
the steel ring 1 is sleeved on the side wall along the circumferential direction, and at least one part of the steel ring 1 is embedded into the side wall in the thickness direction of the side wall;
the brake drum is characterized in that a connecting hole 2 is formed in the inner wall of the steel ring 1, and a connecting part which is integrally cast with the brake drum body 3 is embedded into the connecting hole 2.
Advantageously, the reinforced composite brake drum can solve the technical problems of cracking of an orifice, cracking of an inner wall, large deformation and short service life of the conventional brake drum.
Preferably, a plurality of the connection holes 2 are arranged at intervals along the circumferential direction of the steel ring.
According to still another aspect of the present invention, the connection portion is formed of a cast iron material that flows into the connection hole 2 when integrally cast. The steel ring 1 is preferably surrounded by the molten cast iron material and is cooled and fixed.
Advantageously, the inner ring and the outer ring (the steel ring 1 and the brake drum body 3) are surrounded and cooled and fixed through the connecting part and the molten cast iron material, so that the binding force between the inner ring and the outer ring is greatly improved, and the problems of relative rotation, ring release and the like of the inner ring and the outer ring can be avoided even if a large braking torque and a high braking temperature exist between the contact surfaces of the inner ring and the outer ring.
According to a further preferred embodiment of the utility model, the cross section of the steel ring 1 is rectangular, circular, triangular or irregular.
According to a further preferred embodiment of the present invention, the connection hole 2 is circular, rectangular or T-shaped.
According to a further preferred embodiment of the utility model, said connection holes 2 are blind holes or through holes.
According to a further preferred embodiment of the utility model, the steel ring 1 is arranged adjacent to the opening 31.
According to another preferred embodiment of the present invention, the steel rings 1 are two or more, and two or more steel rings 1 are sequentially disposed on the side wall along a direction perpendicular to the bottom.
According to a further preferred embodiment of the utility model, the steel ring 1 is integrally embedded in the side wall.
According to a further preferred embodiment of the utility model, the steel ring 1 is made of structural steel.
According to a further preferred embodiment of the utility model, the steel ring 1 is made of carbon steel.
According to another preferred embodiment of the present invention, the brake drum body 3 is made of gray cast iron material, nodular cast iron material or vermicular cast iron material, etc., the steel ring 1 is made of structural alloy steel material (or other carbon steel), the steel ring is formed by spinning and then machining according to size, the cross section of the steel ring is rectangular, a circular hole (connecting hole) 2 is machined on the steel ring, the steel ring is pre-embedded in a mold of the brake drum body 1, molten iron is cast, the molten iron is cooled and formed in the mold, wherein the molten iron flows into the circular hole of the steel ring to be condensed, and finally the brake drum body is embedded into the steel ring to be cast into a whole.
Preferably, the shape of the hole on the steel ring is not limited to the circular hole, but may be other shapes of holes which can be integrated with the steel ring when the brake drum body is cast, such as a rectangular hole, a T-shaped hole, and the like.
Preferably, the cross-sectional shape of the steel ring is not limited to that shown in the drawings, but may be another cross-sectional shape that can be integrated with the steel ring when the brake drum body is cast.
Preferably, the number of steel rings is not limited to that shown in the drawings, and other numbers are possible as long as the brake drum body outer ring axial space can be arranged.
The utility model can obtain one or more of the following technical effects:
the integrated molding technology of pre-embedding the steel ring in advance by adopting the die is adopted, the process form that the brake drum and the steel ring are compounded into a whole is improved, the concentricity and the wall thickness uniformity of the brake drum are improved, the unbalance amount of the brake drum is greatly reduced, and the binding force between the steel ring and the brake drum body is improved;
the connecting holes on the steel ring avoid the rotation of the inner ring and the outer ring caused by temperature change and material deformation;
the composite application of the bimetallic material not only meets the wear resistance of the brake drum, but also enhances the integral structural strength and the deformation-resistant rigidity of the brake drum, greatly improves the safety performance, prolongs the service life of the brake drum and effectively avoids the danger of breaking and flying out of the brake drum.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A reinforced composite brake drum, comprising:
the brake drum comprises a brake drum body and a brake drum body, wherein the brake drum body is integrally cast and molded by cast iron materials, the brake drum body comprises a bottom and a side wall formed by circumferential surrounding, and an opening is formed at one end opposite to the bottom; and
the steel ring is sleeved on the side wall along the circumferential direction, and at least one part of the steel ring is embedded into the side wall in the thickness direction of the side wall;
the brake drum comprises a brake drum body, wherein the inner wall of the steel ring is provided with a connecting hole, and a connecting part integrally cast with the brake drum body is embedded into the connecting hole.
2. The reinforced composite brake drum of claim 1, wherein the connection portion is formed of a cast iron material that flows into the connection hole when integrally cast, and the steel ring is surrounded by the molten cast iron material and is cooled and fixed.
3. The reinforced composite brake drum of claim 1 or 2, wherein the cross section of the steel ring is rectangular, circular, triangular or irregular.
4. The reinforced composite brake drum of claim 3, wherein the attachment holes are circular, rectangular or T-shaped.
5. The reinforced composite brake drum of claim 4, wherein the attachment holes are blind holes or through holes.
6. The reinforced composite brake drum of claim 3, wherein the steel ring is disposed adjacent the opening.
7. The reinforced composite brake drum of claim 6, wherein the steel rims are two or more, and two or more steel rims are sequentially disposed on the sidewalls in a direction perpendicular to the bottom.
8. The reinforced composite brake drum of claim 4, wherein the steel ring is integrally embedded in the sidewall.
9. The reinforced composite brake drum of claim 7, wherein the steel ring is made of structural steel.
10. The reinforced composite brake drum of claim 7, wherein the steel ring is made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121872481.7U CN215980560U (en) | 2021-08-11 | 2021-08-11 | Reinforced composite brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121872481.7U CN215980560U (en) | 2021-08-11 | 2021-08-11 | Reinforced composite brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980560U true CN215980560U (en) | 2022-03-08 |
Family
ID=80575610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121872481.7U Active CN215980560U (en) | 2021-08-11 | 2021-08-11 | Reinforced composite brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980560U (en) |
-
2021
- 2021-08-11 CN CN202121872481.7U patent/CN215980560U/en active Active
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