CN211852604U - Composite brake disc - Google Patents
Composite brake disc Download PDFInfo
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- CN211852604U CN211852604U CN202020251490.3U CN202020251490U CN211852604U CN 211852604 U CN211852604 U CN 211852604U CN 202020251490 U CN202020251490 U CN 202020251490U CN 211852604 U CN211852604 U CN 211852604U
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- brake disc
- brake
- bulge
- disc body
- ring
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Abstract
The utility model discloses a composite brake disc, include by the brake disc body and participate in the braking ring of friction braking, the braking ring has first faying face, and the brake disc body has the second faying face, it is protruding to be equipped with a plurality of first archs and/or a plurality of second on the first faying face, be equipped with on the second faying face and hold first bellied first recess and/or hold the bellied second recess of second. The utility model discloses a composite brake disc promotes the bonding strength between brake ring and the brake disc body, avoids the separation to lead to heat conduction efficiency to reduce in the use to can improve the heat conductivility of brake disc.
Description
Technical Field
The utility model belongs to the technical field of the vehicle brake disc, specifically speaking, the utility model relates to a composite brake disc.
Background
The existing floating type composite brake disc mainly comprises a brake disc body and an inner brake ring and an outer brake ring, wherein the brake disc body is made of cast aluminum materials, and the inner brake ring and the outer brake ring are cast iron brake rings. The degree of combination and the heat conductivity between inside and outside two brake rings and the brake disc body will directly influence the heat-sinking capability of brake disc, is the key whether compound brake disc can develop successfully.
Because the thermal resistance exists at the junction surface of the brake ring and the brake disc body of the existing composite brake disc, the heat generated during braking can not be transmitted to the brake disc body in time, so that the temperature rise of the brake disc is overhigh, and the braking performance of a vehicle is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a composite brake disc, the purpose is the joint strength and the heat conductivility that improve between the combined material.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: a composite brake disc comprises a brake disc body and a brake ring, wherein the brake ring is provided with a first combining surface, the brake disc body is provided with a second combining surface, the first combining surface is provided with a plurality of first bulges and/or a plurality of second bulges, and the second combining surface is provided with a first groove for accommodating the first bulges and/or a second groove for accommodating the second bulges.
The brake disc body is made of lightweight materials.
The brake disc body is made of aluminum materials, and the brake ring is made of gray iron materials.
The utility model discloses a composite brake disc promotes the bonding strength between brake ring and the brake disc body, avoids the separation to lead to heat conduction efficiency to reduce in the use to can improve the heat conductivility of brake disc.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a cross-sectional view of a composite brake rotor according to a first embodiment;
FIG. 2 is a cross-sectional view of a composite brake rotor according to a second embodiment;
labeled as: 1. a brake disc body; 2. a brake ring; 3. a friction ring body; 4. a first protrusion or a second protrusion.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
Example one
As shown in fig. 1, the first embodiment provides a composite brake disc, which includes a brake disc body made of a cast aluminum material and a brake ring made of a cast iron material, wherein the brake ring has a first combining surface, the brake disc body has a second combining surface, the first combining surface is provided with a plurality of first protrusions and/or a plurality of second protrusions, the second combining surface is provided with a first groove for accommodating the first protrusions and/or a second groove for accommodating the second protrusions, a sectional area of the first protrusions is gradually reduced along a length direction thereof, and a sectional area of the second protrusions is gradually increased along a length direction thereof.
Specifically, as shown in fig. 1, the brake ring is a circular ring structure, the brake disc body is coaxially and fixedly connected with the brake ring, and the brake disc body is used for being mounted on a wheel. The brake ring is also provided with a brake surface, the brake surface is a plane perpendicular to the axis of the brake ring and is used for contacting with a brake block of the brake caliper assembly to generate braking force, the first combining surface and the brake surface are coaxially arranged, and the first combining surface and the brake surface are two opposite sides of the brake ring. The brake ring sets up two and two brake rings and is the symmetrical arrangement, and the brake disc body is located between two brake rings and two brake rings are fixed connection, and two brake rings are the integrated casting shaping. The brake disc body is provided with two second joint surfaces, the two second joint surfaces are two opposite side surfaces of the brake disc body, and the two second joint surfaces are respectively attached to the first joint surfaces of the two brake rings. The first bulge is provided with a certain length, the length direction of the first bulge is perpendicular to the first combining surface or an included angle smaller than 90 degrees is formed between the length direction of the first bulge and the first combining surface, the first bulge extends out towards the outer side of the first combining surface, the sectional area of the first bulge is the area of the cross section perpendicular to the length direction of the first bulge, namely the first bulge is provided with a large-diameter end and a small-diameter end, the size of the large-diameter end of the first bulge is larger than that of the small-diameter end, the sectional area of the large-diameter end of the first bulge is larger than that of the small-diameter end, the large-diameter end of the first bulge is fixedly connected with the first combining surface, the small-diameter end of the first bulge is far away from the first combining surface, and the small-diameter end of the first bulge is positioned in the first groove. The second bulge is also provided with a certain length, the length direction of the second bulge is perpendicular to the first combining surface or an included angle smaller than 90 degrees is formed between the length direction of the second bulge and the first combining surface, the second bulge extends towards the outer side of the first combining surface, the sectional area of the second bulge is the area of the cross section perpendicular to the length direction of the second bulge, namely the second bulge is provided with a large-diameter end and a small-diameter end, the size of the large-diameter end of the second bulge is larger than that of the small-diameter end, the sectional area of the large-diameter end of the second bulge is larger than that of the small-diameter end, the small-diameter end of the second bulge is fixedly connected with the first combining surface, the large-diameter end of the second bulge is far away from the first combining surface, and the large-diameter end of the second bulge is positioned in the second groove.
As shown in fig. 1, the brake ring includes a friction ring body, and the friction ring body is provided with a first protrusion and/or a second protrusion, and the first protrusion and/or the second protrusion are integrally cast with the friction ring body. The friction ring body is of a circular ring structure, the brake disc body and the friction ring body are coaxially and fixedly connected, and the braking surface and the first combining surface are two opposite side surfaces of the friction ring body. The shapes of the first grooves are matched with those of the first bulges, the number of the first grooves is the same as that of the first bulges, each first bulge is embedded into one first groove, and the first grooves are formed by recessing from the second joint surface to the inner part of the brake disc body. The shapes of the second grooves are matched with those of the second bulges, the number of the second grooves is the same as that of the second bulges, each second bulge is embedded into one second groove, and the second grooves are formed by recessing from the second joint surface to the inner part of the brake disc body. The friction ring body can be only provided with the first bulge, and correspondingly, the brake disc body is only provided with the first groove; the friction ring body can also be only provided with a second bulge, and correspondingly, the brake disc body is only provided with a second groove; the friction ring body can also be simultaneously provided with a first protrusion and a second protrusion, and correspondingly, the brake disc body is simultaneously provided with a first groove and a second groove.
When the brake disc body is manufactured, the two brake rings are placed in a cavity of a casting device, molten metal poured into the cavity is aluminum liquid in the casting process, and the cavity is filled with the molten metal; and in the cooling process, the brake disc body is formed in the cavity, the first protrusion and/or the second protrusion are embedded into the brake disc body, namely, the first groove and/or the second groove are formed on the brake disc body, the first protrusion and/or the second protrusion are fixedly connected with the brake disc body, and the brake ring and the brake disc body are combined into a whole to form the brake disc. By adopting the structure, the structure of the brake ring is optimized, so that molten metal surrounds the first protrusion and/or the second protrusion in the casting process, and finally the brake disc body is connected with the brake ring, the first protrusion and/or the second protrusion into a whole, so that the bonding strength of aluminum and iron can be improved, the heat conductivity of an iron-aluminum contact surface can also be improved, and the temperature rise of the brake disc is reduced in the vehicle braking process. By improving the bonding strength between the brake ring and the brake disc body, the reduction of the heat conduction efficiency caused by the separation of the bonding surface of the brake ring and the brake disc body in the use process can be avoided, and the heat conduction performance of the brake disc can be improved.
Aiming at the composite brake disc with the structure, when the brake ring is manufactured, the first bulge and/or the second bulge and the friction ring body are integrally cast and formed, the two brake rings are also integrally cast and formed, and the two brake rings are fixedly connected to form an integral structure. When the brake disc body is manufactured, an integral structure formed by connecting two brake rings is placed in a cavity of a casting device, molten metal poured into the cavity is aluminum liquid in the casting process, and the cavity is filled with the molten metal; and in the cooling process, the brake disc body is formed in the cavity, the first protrusion and/or the second protrusion are embedded into the brake disc body, namely, the first groove and/or the second groove are formed on the brake disc body, the first protrusion and/or the second protrusion are fixedly connected with the brake disc body, and the brake ring and the brake disc body are combined into a whole to form the aluminum-iron composite brake disc.
Example two
As shown in fig. 2, the second embodiment provides a composite brake disc, which includes a brake disc body made of a cast aluminum material and a brake ring made of a cast iron material, wherein the brake ring has a first combining surface, the brake disc body has a second combining surface, the first combining surface is provided with a plurality of first protrusions and/or a plurality of second protrusions, the second combining surface is provided with a first groove for accommodating the first protrusions and/or a second groove for accommodating the second protrusions, a sectional area of the first protrusions is gradually reduced along a length direction thereof, and a sectional area of the second protrusions is gradually increased along a length direction thereof.
Specifically, as shown in fig. 2, the brake ring is a circular ring structure, and the brake disc body is coaxially and fixedly connected with the brake ring and is used for being mounted on a wheel. The brake ring is also provided with a brake surface, the brake surface is a plane perpendicular to the axis of the brake ring and is used for contacting with a brake block of the brake caliper assembly to generate braking force, the first combining surface and the brake surface are coaxially arranged, and the first combining surface and the brake surface are two opposite sides of the brake ring. The brake ring sets up two and two brake rings and is the symmetrical arrangement, and the brake disc body is located between two brake rings and two brake rings are fixed connection. The brake disc body is provided with two second joint surfaces, the two second joint surfaces are two opposite side surfaces of the brake disc body, and the two second joint surfaces are respectively attached to the first joint surfaces of the two brake rings. The first bulge is provided with a certain length, the length direction of the first bulge is perpendicular to the first combining surface or an included angle smaller than 90 degrees is formed between the length direction of the first bulge and the first combining surface, the first bulge extends out towards the outer side of the first combining surface, the sectional area of the first bulge is the area of the cross section perpendicular to the length direction of the first bulge, namely the first bulge is provided with a large-diameter end and a small-diameter end, the size of the large-diameter end of the first bulge is larger than that of the small-diameter end, the sectional area of the large-diameter end of the first bulge is larger than that of the small-diameter end, the large-diameter end of the first bulge is fixedly connected with the first combining surface, the small-diameter end of the first bulge is far away from the first combining surface, and the small-diameter end of the first bulge is positioned in the first groove. The second bulge is also provided with a certain length, the length direction of the second bulge is perpendicular to the first combining surface or an included angle smaller than 90 degrees is formed between the length direction of the second bulge and the first combining surface, the second bulge extends towards the outer side of the first combining surface, the sectional area of the second bulge is the area of the cross section perpendicular to the length direction of the second bulge, namely the second bulge is provided with a large-diameter end and a small-diameter end, the size of the large-diameter end of the second bulge is larger than that of the small-diameter end, the sectional area of the large-diameter end of the second bulge is larger than that of the small-diameter end, the small-diameter end of the second bulge is fixedly connected with the first combining surface, the large-diameter end of the second bulge is far away from the first combining surface, and the large-diameter end of the second bulge is positioned in the second groove.
As shown in fig. 2, the brake ring includes a friction ring body, and the friction ring body is provided with a first protrusion and/or a second protrusion, and the first protrusion and/or the second protrusion are integrally cast with the friction ring body. The friction ring body is of a circular ring structure, the brake disc body and the friction ring body are coaxially and fixedly connected, and the braking surface and the first combining surface are two opposite side surfaces of the friction ring body. The shapes of the first grooves are matched with those of the first bulges, the number of the first grooves is the same as that of the first bulges, each first bulge is embedded into one first groove, and the first grooves are formed by recessing from the second joint surface to the inner part of the brake disc body. The shapes of the second grooves are matched with those of the second bulges, the number of the second grooves is the same as that of the second bulges, each second bulge is embedded into one second groove, and the second grooves are formed by recessing from the second joint surface to the inner part of the brake disc body. The friction ring body can be only provided with the first bulge, and correspondingly, the brake disc body is only provided with the first groove; the friction ring body can also be only provided with a second bulge, and correspondingly, the brake disc body is only provided with a second groove; the friction ring body can also be simultaneously provided with a first protrusion and a second protrusion, and correspondingly, the brake disc body is simultaneously provided with a first groove and a second groove.
When the brake disc body is manufactured, the two brake rings are placed in a cavity of a casting device, molten metal poured into the cavity is aluminum liquid in the casting process, and the cavity is filled with the molten metal; and in the cooling process, the brake disc body is formed in the cavity, the first protrusion and/or the second protrusion are embedded into the brake disc body, namely, the first groove and/or the second groove are formed on the brake disc body, the first protrusion and/or the second protrusion are fixedly connected with the brake disc body, and the brake ring and the brake disc body are combined into a whole to form the brake disc. By adopting the structure, the structure of the brake ring is optimized, so that molten metal surrounds the first protrusion and/or the second protrusion in the casting process, and finally the brake disc body is connected with the brake ring, the first protrusion and/or the second protrusion into a whole, so that the bonding strength of aluminum and iron can be improved, the heat conductivity of an iron-aluminum contact surface can also be improved, and the temperature rise of the brake disc is reduced in the vehicle braking process. By improving the bonding strength between the brake ring and the brake disc body, the reduction of the heat conduction efficiency caused by the separation of the bonding surface of the brake ring and the brake disc body in the use process can be avoided, and the heat conduction performance of the brake disc can be improved.
Aiming at the composite brake disc with the structure, when the brake ring is manufactured, the first bulge and/or the second bulge and the friction ring body are integrally cast and molded. When the brake disc body is manufactured, the two brake rings are placed in a cavity of a casting device, molten metal poured into the cavity is aluminum liquid in the casting process, and the cavity is filled with the molten metal; and in the cooling process, the brake disc body is formed in the cavity, the first protrusion and/or the second protrusion are embedded into the brake disc body, namely, the first groove and/or the second groove are formed on the brake disc body, the first protrusion and/or the second protrusion are fixedly connected with the brake disc body, and the brake ring and the brake disc body are combined into a whole to form the aluminum-iron composite brake disc.
EXAMPLE III
In a third embodiment, a plurality of first protrusions and/or a plurality of second protrusions are/is disposed on the first bonding surface of the brake ring, and a first groove for accommodating the first protrusions and/or a second groove for accommodating the second protrusions is/are disposed on the second bonding surface of the brake disc body, so as to improve the bonding strength between the brake ring and the brake disc body.
Specifically, the method for enhancing the heat conductivity of the aluminum-iron composite brake disc provided in the third embodiment is mainly different from the methods for enhancing the heat conductivity of the aluminum-iron composite brake disc provided in the first embodiment, the second embodiment and the third embodiment in that a forming manner of the first protrusion and/or the second protrusion is added, and the contents of the rest parts are the same, and the same parts are not described herein again.
The brake ring is cast and molded by a casting device, the casting device mainly comprises a lower box, an upper box matched with the lower box and a sand core or a sand mould which is arranged in a cavity and used for forming a brake ring casting, and the upper box and the lower box form a sand box. In this embodiment, when the casting device of the brake ring is manufactured, a coating is coated on a sand core or a sand mold of the casting device, so that a coating layer is formed on the surface of the sand core or the sand mold, and then the sand core or the sand mold is heated, so that a first cavity and/or a second cavity is formed on the sand core or the sand mold; the first cavity is used for containing molten metal in the casting process to form the first protrusion, and the second cavity is used for containing molten metal in the casting process to form the second protrusion.
The coating material coated on the surface of the sand core or the sand mold of the casting device is preferably diatom ooze, and when the sand core or the sand mold is heated, the diatom ooze can form a cavity body on the surface of the sand core or the sand mold after moisture is evaporated, namely a first cavity and/or a second cavity is formed on the surface of the sand core or the sand mold. Then when the brake ring is manufactured, after molten metal (molten iron) is smelted, the molten metal is poured from a pouring gate of a casting device or is filled in a first cavity and/or a second cavity on the surface of a sand mold; and in the cooling process, a friction ring body is formed in the cavity, a first bulge is formed in the first cavity, a second bulge is formed in the second cavity, and the first bulge and/or the second bulge are/is fixedly connected with the friction ring body to form the brake ring.
By the method, various irregular cavities even in the shape of barbs are formed on the surface of the sand core or the sand mold, various bulges or pits are correspondingly formed after the molten metal is poured, and molten aluminum can be filled between the bulges and the pits in the subsequent secondary pouring process, so that the good embedded connection is formed between the joint surfaces of the composite material, the joint strength is improved, and the relatively large thermal resistance formed between the joint surfaces due to poor joint is reduced. The formation of such irregular and even barbed cavities on the surface of a sand core or sand mold is difficult to achieve by machining.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (3)
1. A composite brake disc comprises a brake disc body and a brake ring, wherein the brake ring is provided with a first combining surface, the brake disc body is provided with a second combining surface, and the composite brake disc is characterized in that a plurality of first bulges and/or a plurality of second bulges are/is arranged on the first combining surface, and a first groove for accommodating the first bulges and/or a second groove for accommodating the second bulges are/is arranged on the second combining surface.
2. The composite brake disc of claim 1, wherein the brake disc body is made of a lightweight material.
3. The composite brake disc of claim 2, wherein the brake disc body is formed of an aluminum material and the brake ring is formed of a gray iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020251490.3U CN211852604U (en) | 2020-03-04 | 2020-03-04 | Composite brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020251490.3U CN211852604U (en) | 2020-03-04 | 2020-03-04 | Composite brake disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852604U true CN211852604U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020251490.3U Active CN211852604U (en) | 2020-03-04 | 2020-03-04 | Composite brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852604U (en) |
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2020
- 2020-03-04 CN CN202020251490.3U patent/CN211852604U/en active Active
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