CN212131131U - Bimetal combined brake disc - Google Patents
Bimetal combined brake disc Download PDFInfo
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- CN212131131U CN212131131U CN202020347577.0U CN202020347577U CN212131131U CN 212131131 U CN212131131 U CN 212131131U CN 202020347577 U CN202020347577 U CN 202020347577U CN 212131131 U CN212131131 U CN 212131131U
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- disc surface
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Abstract
The utility model relates to a bimetal combined brake disc, which comprises a connecting mechanism and a brake disc body, wherein the connecting mechanism is detachably connected with the brake disc body; the connecting mechanism is connected with the brake disc body through bolts or rivets; the connecting mechanism is made of high-strength carbon steel plates through stamping or spinning, and the brake disc body is made of high-carbon grey cast iron. The connecting mechanism is made of high-strength steel plates, so that the phenomenon of flange cracking or top shedding is avoided in the using process of the product, and the driving safety performance of the vehicle is ensured; the weight of the product is reduced; because coupling mechanism adopts the preparation of high strength steel sheet, reducible product wall thickness, weight reduction, this product adopts bolt or rivet fastening combination formula installation, need change the flange during the maintenance, and it is convenient to dismantle, and cost of maintenance reduces, and simultaneously, this structure can obstruct braking quotation heat and pass to the flange, has protected wheel hub and bearing and has been unlikely to move under high temperature state.
Description
Technical Field
The utility model belongs to the technical field of the car wheel end assembly, especially, relate to a bimetal combination formula brake disc.
Background
Because the disc brake has the advantages of sensitive braking, good heat dissipation performance and the like, the disc brake is popularized and used in luxury buses, buses and trucks, and the disc brake gradually replaces the existing drum brake. The front and rear drums have tended and the demand for brake discs will increase dramatically in subsequent countries requiring trailers that are all switched to disc braking.
Brake discs for commercial trucks and luxury buses have been cast from gray iron, see fig. 1, which has the following disadvantages during use:
1. the strength of the gray iron material is low, and HT250 or even HT200 is generally required; the flange bottom is cracked in the use process of the brake disc, so that potential safety hazards are caused;
2. for the use requirement, the brake disc surface is required to have good heat dissipation performance, but the brake disc surface is limited by the strength requirement of a flange, the carbon content in the material cannot be increased, the heat conduction performance of the material of the brake disc surface is poor, the temperature rise of the brake disc surface is overhigh in the braking process, the disc surface is extremely easy to generate fatigue cracks, even cracks, the braking performance of a vehicle is influenced, and the service life of the brake disc product is relatively short;
3. the lightweight automobile has become the development subject, and because the intensity of the gray iron material is limited, in order to reach the structural strength of the product, the wall thickness of each part is designed to be thicker, and the product weight of the gray iron brake disc is increased.
4. When the brake disc breaks down in the use process, the brake disc needs to be integrally disassembled, the maintenance time is long, and the maintenance cost is high.
Disclosure of Invention
In view of this, the utility model aims at providing a bimetal combination formula brake disc, the brake disc flange end fracture that aims at solving and be used for commercial truck and luxurious big bus, braking quotation temperature rise is too high, takes place the tortoise crackle, influences brake performance and life-span and hangs down partially, breaks down and needs whole dismantlement, and maintenance duration is long, repaiies into defect with high costs.
In order to achieve the purpose, the technical scheme is as follows:
the bimetal combined brake disc comprises a connecting mechanism and a brake disc body, wherein the connecting mechanism is detachably connected with the brake disc body;
the connecting mechanism is connected with the brake disc body through bolts or rivets;
the material of the connecting mechanism is required to be made of a high-strength carbon steel plate through stamping or spinning, the brake disc body is made of high-carbon grey cast iron, and the high-carbon grey cast iron comprises the following chemical components in percentage by mass:
c: 3.40-3.90, Si: 1.50 to 2.10, Mn: 0.50 to 1.10, P: less than or equal to 0.10, S: less than or equal to 0.12, Cr: 0.20-0.60 wt%, and the balance Fe.
As a further improvement of the utility model, the brake disc body is of a circular ring-shaped structure and comprises a first brake disc surface and a second brake disc surface, the surfaces of the first brake disc surface and the second brake disc surface are parallel and are connected through a plurality of cylinders which are uniformly distributed in a crossed manner, and the two brake disc surfaces are connected into a whole, so that an air duct is formed between the first brake disc surface and the second brake disc surface, and the inner circle radius of the first brake disc surface is smaller than that of the second brake disc surface;
the connecting mechanism comprises an integrally formed flange, a connecting body and a fastening body, the connecting body is of a cylindrical tubular structure, the fastening body is of a circular ring-shaped mechanism, one end of the connecting body is integrally formed with the flange, the other end of the connecting body is connected with an inner ring of the fastening body, and meanwhile, the fastening body is connected with the first brake disc surface through a bolt or a rivet;
as a further improvement of the utility model, the wall thickness of the fastening body is 75-90% of the wall thickness of the flange.
As a further improvement of the utility model, the wall thickness of the end of the fastening body connected with the braking disc surface is 25-50% of the width of the air duct.
As a further improvement of the utility model, the brake disc body is of a circular ring-shaped structure and comprises a first brake disc surface and a second brake disc surface, the surfaces of the first brake disc surface and the second brake disc surface are parallel and are connected through a plurality of cylinders which are uniformly distributed in a crossed manner, and the two brake disc surfaces are connected into a whole, so that an air duct is formed between the first brake disc surface and the second brake disc surface, and the inner circle radius of the first brake disc surface is larger than that of the second brake disc surface;
coupling mechanism sets up in the one side that is close to first braking quotation, and coupling mechanism includes flange, connector and complex body, the connector is cylinder tubular structure, connector one end and flange integrated into one piece, and the other end is connected through bolt or rivet with the complex body, the complex body is the interior round binding off column structure of ring, and the cross-section of complex body is the L shape, complex body one end passes through bolt or rivet connection with the connector, and the other end alternates between first braking quotation and second braking quotation, and passes the most inboard cylinder between first braking quotation and the second braking quotation.
As a further improvement of the utility model, the complex body passes through the cylinder with the inner circle radius larger than the innermost cylinder between the second brake disc surfaces in the first brake disc surface and extends out by a distance of 3-10 mm.
As a further improvement of the utility model, the high carbon gray cast iron is added with chemical components by mass percent: cu: 0.30-0.60% or Mo: 0.20-0.50% to increase the strength and hardness of the brake disc body.
As a further improvement of the utility model, the high carbon gray cast iron is added with chemical components by mass percent: cu: 0.30-0.60% and Mo: 0.20-0.50% to increase the strength and hardness of the brake disc body.
The manufacturing method of the bimetal combined brake disc comprises the following steps:
s1: selecting carbon steel, and manufacturing a flange, a connector and a fastening body by adopting a spinning or stamping mode;
s2: manufacturing a brake disc surface:
s2-1: manufacturing a disc pouring sand mold by using a disc mold;
s2-2: pouring high-carbon disc surface molten iron meeting the component requirements into a sand mold cavity to finish the manufacturing of a brake disc surface blank;
s2-3: the flange, the connecting body, the fastening body and the first brake disc surface are fastened and connected through bolts or rivets;
s3: and machining the bimetal combined brake disc blank to obtain a bimetal combined brake disc finished product.
The manufacturing method of the bimetal combined brake disc comprises the following steps:
s1, preparing a flange, a connector and a complex by spinning or punching carbon steel;
s2: manufacturing a brake disc surface:
s2-1: putting the manufactured composite body part into a disc surface mold cavity, manufacturing a disc surface and pouring a sand mold;
s2-2: pouring high-carbon disc surface molten iron meeting the component requirements into a sand mold cavity to complete the manufacturing of a brake disc body blank and the compounding of the composite body and the brake disc body to manufacture a high-strength light-weight composite brake disc blank;
s2-3: fastening and connecting the integrally formed flange and the connecting body with the complex body through bolts or rivets;
s3: and machining the bimetal combined brake disc blank to obtain a bimetal combined brake disc finished product.
The utility model has the advantages that:
1. the flange and the connector are made of high-strength steel plates, so that the flange is not cracked or topped during the use of the product, and the driving safety performance of the vehicle is ensured;
2. the braking performance and the service life of the product are improved; the brake disc surface is made of a material with high heat-conducting property, so that heat generated in the braking process of the vehicle can be quickly dissipated, the temperature of the brake disc surface is prevented from rising, the braking efficiency is prevented from being reduced, and the service life of the brake disc surface is prolonged;
3. the weight of the product is reduced; because the flange and the connector are made of high-strength steel plates, the wall thickness of the product can be reduced, and meanwhile, the weight of the product is reduced by 10 percent;
4. this product adopts bolt or rivet fastening combination formula installation, need change the flange during maintenance, and it is convenient to dismantle, and cost of maintenance reduces, and simultaneously, this structure can obstruct braking quotation heat and pass to the flange, has protected wheel hub and bearing unlikely operation under high temperature state.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is a schematic diagram of a half-section structure of the utility model.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
Example one
Referring to fig. 1 and 3, the bimetal combined brake disc includes a connecting mechanism 10 and a brake disc body 20, wherein the connecting mechanism 10 is detachably connected to the brake disc body 20;
the connecting mechanism 10 is connected with the brake disc body 20 through bolts or rivets 30;
the connecting mechanism 10 is made of a high-strength carbon steel plate through stamping or spinning, the brake disc body 20 is made of high-carbon grey cast iron, and the high-carbon grey cast iron comprises the following chemical components in percentage by mass:
c: 3.40-3.90, Si: 1.50 to 2.10, Mn: 0.50 to 1.10, P: less than or equal to 0.10, S: less than or equal to 0.12, Cr: 0.20-0.60, and the balance of Fe; the high-carbon gray cast iron comprises the following chemical components in percentage by mass: cu: 0.30-0.60% and (or) Mo: 0.20-0.50% to increase the strength and hardness of the brake disc body 20.
The brake disc body 20 is of a circular ring-shaped structure and comprises a first brake disc surface 21 and a second brake disc surface 22, the surfaces of the first brake disc surface 21 and the second brake disc surface 22 are parallel, and the first brake disc surface 21 and the second brake disc surface 22 are connected through a plurality of cylinders 23 which are uniformly distributed in a crossed manner to connect the two brake disc surfaces into a whole, so that an air duct 24 is formed between the first brake disc surface 21 and the second brake disc surface 22, and the radius of the inner circle of the first brake disc surface 21 is smaller than that of the inner circle of the second brake disc surface 22;
the connecting mechanism 10 comprises an integrally formed flange 11, a connecting body 12 and a fastening body 13, wherein the connecting body 12 is of a cylindrical tubular structure, the fastening body 13 is of a circular ring-shaped mechanism, one end of the connecting body 12 is integrally formed with the flange 11, the other end of the connecting body is connected with an inner ring of the fastening body 13, and meanwhile, the fastening body 13 is connected with a first brake disc surface 21 through a bolt or a rivet 30;
the wall thickness of the fastening body 13 is 75-90% of that of the flange 11, and the wall thickness of one end of the fastening body 13 connected with the brake disc body 20 is 25-50% of the width of the air duct 24.
The connecting mechanism 10 is made of a high-strength carbon steel plate by stamping or spinning, generally selected from Q235B and the highest Q275, and specifically shown in table 1 below:
table 1:
the manufacturing method of the bimetal combined brake disc comprises the following steps:
s1: selecting carbon steel, and manufacturing a flange 11, a connector 12 and a fastening body 13 by adopting a spinning or stamping mode;
s2: manufacturing a brake disc surface:
s2-1: manufacturing a disc pouring sand mold by using a disc mold;
s2-2: pouring high-carbon disc surface molten iron meeting the component requirements into a sand mold cavity to finish the manufacturing of a brake disc surface blank;
s2-3: the flange 11, the connecting body 12, the fastening body 13 and the first brake disc surface 21 are fastened and connected through bolts or rivets 30;
s3: and machining the bimetal combined brake disc blank to obtain a bimetal combined brake disc finished product.
Example two
Referring to fig. 2 and 3, the bimetal combined brake disc includes a connecting mechanism 10 and a brake disc body 20, wherein the connecting mechanism 10 is detachably connected to the brake disc body 20;
the connecting mechanism 10 is connected with the brake disc body 20 through bolts or rivets 30;
the connecting mechanism 10 is made of a high-strength carbon steel plate through stamping or spinning, the brake disc body 20 is made of high-carbon grey cast iron, and the high-carbon grey cast iron comprises the following chemical components in percentage by mass:
c: 3.40-3.90, Si: 1.50 to 2.10, Mn: 0.50 to 1.10, P: less than or equal to 0.10, S: less than or equal to 0.12, Cr: 0.20-0.60, and the balance of Fe; the high-carbon gray cast iron comprises the following chemical components in percentage by mass: cu: 0.30-0.60% and (or) Mo: 0.20-0.50% to increase the strength and hardness of the brake disc body 20.
The brake disc body 20 is of a circular ring-shaped structure and comprises a first brake disc surface 21 and a second brake disc surface 22, the surfaces of the first brake disc surface 21 and the second brake disc surface 22 are parallel, and the first brake disc surface 21 and the second brake disc surface 22 are connected through a plurality of cylinders 23 which are uniformly distributed in a crossed manner to connect the two brake disc surfaces into a whole, so that an air duct 24 is formed between the first brake disc surface 21 and the second brake disc surface 22, and the radius of the inner circle of the first brake disc surface 21 is larger than that of the inner circle of the second brake disc surface 22;
connecting mechanism 10 sets up in the one side that is close to first brake disc face 21, and connecting mechanism 10 includes flange 11, connector 12 and complex body 14, connector 12 is the cylinder tubular structure, and connector 12 one end and flange 11 integrated into one piece, the other end are connected through bolt or rivet 30 with complex body 14, complex body 14 is the circular ring internal circle binding off column structure, and complex body 14's cross-section is the L shape, 14 one end of complex body is connected through bolt or rivet 30 with connector 12, and the other end alternates between first brake disc face 21 and second brake disc face 22, and passes the most inboard cylinder 23 between first brake disc face 21 and the second brake disc face 22.
The composite 14 passes through the cylinder 23 with the inner circle radius larger than the innermost circle radius between the first brake disc surface 21 and the second brake disc surface 22 and extends out by a distance of 3-10 mm.
The connecting mechanism 10 is made of a high-strength carbon steel plate by stamping or spinning, generally selected from Q235B and the highest Q275, and specifically shown in table 1 below:
table 1:
the manufacturing method of the bimetal combined brake disc comprises the following steps:
s1, preparing the flange 11, the connector 12 and the complex 14 by spinning or punching carbon steel;
s2: manufacturing a brake disc surface:
s2-1: placing the manufactured complex 14 component into a disc surface mold cavity, and manufacturing a disc surface casting sand mold;
s2-2: pouring high-carbon disc surface molten iron meeting the component requirements into a sand mold cavity to complete the manufacturing of the brake disc body 20 blank and the compounding of the compound body 14 and the brake disc body 20 to manufacture a high-strength light-weight compound brake disc blank;
s2-3: the integrally formed flange 11 and the connecting body 12 are fastened and connected with the complex 14 through bolts or rivets 30;
s3: and machining the bimetal combined brake disc blank to obtain a bimetal combined brake disc finished product.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The bimetal combined brake disc is characterized by comprising a connecting mechanism and a brake disc body, wherein the connecting mechanism is detachably connected with the brake disc body;
the connecting mechanism is connected with the brake disc body through bolts or rivets;
the connecting mechanism is made of high-strength carbon steel plates through stamping or spinning, and the brake disc body is made of high-carbon grey cast iron.
2. The bi-metallic modular brake disc of claim 1, wherein:
the brake disc body is of a circular ring-shaped structure and comprises a first brake disc surface and a second brake disc surface, the surfaces of the first brake disc surface and the second brake disc surface are parallel, the first brake disc surface and the second brake disc surface are connected through a plurality of cylinders which are uniformly distributed in a crossed manner, the two brake disc surfaces are connected into a whole, so that an air duct is formed between the first brake disc surface and the second brake disc surface, and the radius of the inner circle of the first brake disc surface is smaller than that of the inner circle of the second brake disc surface;
coupling mechanism includes integrated into one piece's flange, connector and fastening body, and the connector is cylinder tubular structure, and the fastening body is ring form mechanism, the one end and the flange integrated into one piece of connector, the other end and the inner circle of fastening body are connected, simultaneously, the fastening body is connected through bolt or rivet with first braking quotation.
3. The bi-metallic composite brake disc of claim 2, wherein the fastening body has a wall thickness of 75-90% of the flange wall thickness.
4. The bimetal composite brake disc of claim 2, wherein the wall thickness of the end of the fastening body connected to the brake disc body is 25-50% of the width of the air duct.
5. The bi-metallic modular brake disc of claim 1, wherein:
the brake disc body is of a circular ring-shaped structure and comprises a first brake disc surface and a second brake disc surface, the surfaces of the first brake disc surface and the second brake disc surface are parallel, the first brake disc surface and the second brake disc surface are connected through a plurality of cylinders which are uniformly distributed in a crossed manner, the two brake disc surfaces are connected into a whole, so that an air duct is formed between the first brake disc surface and the second brake disc surface, and the radius of the inner circle of the first brake disc surface is larger than that of the inner circle of the second brake disc surface;
coupling mechanism sets up in the one side that is close to first braking quotation, and coupling mechanism includes flange, connector and complex body, the connector is cylinder tubular structure, connector one end and flange integrated into one piece, and the other end is connected through bolt or rivet with the complex body, the complex body is the interior round binding off column structure of ring, and the cross-section of complex body is the L shape, complex body one end passes through bolt or rivet connection with the connector, and the other end alternates between first braking quotation and second braking quotation, and passes the most inboard cylinder between first braking quotation and the second braking quotation.
6. The bi-metallic composite brake disc of claim 5, wherein the composite body extends through the first brake disc surface with an inner circular radius greater than the innermost cylinder between the second brake disc surfaces by a distance of 3-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020347577.0U CN212131131U (en) | 2020-03-19 | 2020-03-19 | Bimetal combined brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020347577.0U CN212131131U (en) | 2020-03-19 | 2020-03-19 | Bimetal combined brake disc |
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| Publication Number | Publication Date |
|---|---|
| CN212131131U true CN212131131U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020347577.0U Active CN212131131U (en) | 2020-03-19 | 2020-03-19 | Bimetal combined brake disc |
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|---|---|
| CN (1) | CN212131131U (en) |
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- 2020-03-19 CN CN202020347577.0U patent/CN212131131U/en active Active
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