CN215293365U - Fusion casting type brake disc - Google Patents
Fusion casting type brake disc Download PDFInfo
- Publication number
- CN215293365U CN215293365U CN202022971901.9U CN202022971901U CN215293365U CN 215293365 U CN215293365 U CN 215293365U CN 202022971901 U CN202022971901 U CN 202022971901U CN 215293365 U CN215293365 U CN 215293365U
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- disc
- cap
- brake disc
- bonding portion
- fusion
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Abstract
The utility model provides a founding formula brake disc, founding formula brake disc include disk body and cap, the disk body is discoid with mesopore, the interior week of disk body forms a set joint portion, the surface of set joint portion has the concave part, the periphery of cap forms a cap joint portion, the cap through the mode of founding form in the interior week side of disk body, just the cap joint portion stretches into partially the concave part. According to the utility model discloses a founding formula brake disc simple structure, reliability are high.
Description
Technical Field
The utility model relates to a brake disc field specifically relates to a founding formula brake disc.
Background
For a brake disc for a motor vehicle, for example, it is common to include a disc body for engaging a friction plate at the time of braking and a cap provided on an inner peripheral side of the disc body for non-rotatably connecting with a transmission portion (e.g., a hub) of the vehicle.
Generally, the disc body and the cap are coupled together by riveting, the coupling strength of the two is not ideal, and the riveting coupling member increases the overall weight of the brake disc.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome or alleviate at least not enough that above-mentioned prior art exists, provide a light-weighted, high strength's founding formula brake disc.
The utility model provides a fusion casting brake disc, which comprises a disc body and a cap, wherein the disc body is in a disc shape with a middle hole,
the inner periphery of the tray body forms a tray bonding portion, the surface of the tray bonding portion has a concave portion,
the outer periphery of the cap forms a cap coupling portion, the cap is formed on the inner peripheral side of the tray body by fusion casting, and the cap coupling portion partially protrudes into the recess.
In at least one embodiment, the recess is a through hole that penetrates the disc engaging portion.
In at least one embodiment, the disk bond is at least partially embedded within the cap bond.
In at least one embodiment, the disc bonding portion has a tubular shape and extends in an axial direction of the brake disc, and the cap bonding portion wraps the disc bonding portion on an inner circumferential side and an outer circumferential side of the disc bonding portion.
In at least one embodiment, the disc bonding portion is disc-shaped and extends toward an inner peripheral side of the brake disc in a radial direction of the brake disc, and the cap bonding portion wraps the disc bonding portion on both sides in an axial direction of the disc bonding portion.
In at least one embodiment, the material from which the disk is made comprises cast iron.
In at least one embodiment, the cap is made of a material comprising an aluminum alloy.
In at least one embodiment, the body of the tray body at the outer periphery has a plurality of heat dissipation grooves formed therein.
According to the utility model discloses a founding formula brake disc simple structure, reliability are high.
Drawings
Fig. 1 is a sectional view of a disk body according to a first embodiment of the present invention in an axial direction.
Fig. 2 is a sectional view of a brake disc according to a first embodiment of the present invention in the axial direction.
Fig. 3 is a perspective cross-sectional view of a brake disc according to a first embodiment of the present invention.
Fig. 4 is a sectional view of a disk body according to a second embodiment of the present invention in the axial direction.
Fig. 5 is a sectional view in the axial direction of a brake disc according to a second embodiment of the present invention.
Fig. 6 is a perspective cross-sectional view of a brake disc according to a second embodiment of the present invention.
Description of reference numerals:
10, a tray body; 11a main body; 11a end plate; 11b a blade; 12 a disc engaging portion; 120 through holes; 13 a yielding groove; 14 heat dissipation grooves; 20 a cap; 21 a cap joint; r is radial; a axial direction.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the detailed description is only intended to teach one skilled in the art how to practice the invention, and is not intended to exhaust all possible ways of practicing the invention, nor is it intended to limit the scope of the invention.
Referring to fig. 1, 2, 4 and 5, unless otherwise specified, a indicates the axial direction of the brake disc, which is coincident with the axial direction of the disc body 10 and the cap 20; r denotes a radial direction of the brake disk, which coincides with the radial direction of the disk body 10 and the cap 20.
Referring to fig. 1 to 6, a fusion-cast brake disc and a method for manufacturing the same according to the present invention will be described, taking a brake disc of a motor vehicle as an example.
(first embodiment)
First, referring to fig. 1 to 3, a brake disc according to a first embodiment of the present invention will be described. The brake disc includes a disc body 10 and a cap 20.
The tray body 10 has a disk shape with a central hole. The outer peripheral portion of the disc 10 is a main body 11, and the main body 11 is used to engage the friction plates during braking. The main body 11 includes two disk-shaped end plates 11a arranged opposite to each other in the axial direction a, a plurality of circumferentially spaced blades 11b connecting the two end plates 11a are provided between the two end plates 11a, and heat dissipation grooves 14 for dissipating heat are formed between the adjacent blades 11 b. During the rotation of the brake disk, air can flow through the heat dissipation grooves 14 to dissipate heat from the disk body 10.
The inner circumferential portion of the tray body 10 forms a tray coupling portion 12 for coupling with the cap 20. In the present embodiment, the disc joint portion 12 is formed in a short pipe shape and extends outward away from the main body 11 in the axial direction a.
A region of the disk coupling portion 12 near the distal end portion (an axial end portion distant from the disk body 10) in the axial direction a is provided with a plurality of through holes 120 penetrating the disk coupling portion 12 in the radial direction R, the through holes 120 being arranged in the circumferential direction of the disk coupling portion 12. The through-hole 120 serves to enable the cap coupling portion 21 of the cap 20 described below to be more firmly coupled with the disk coupling portion 12.
Alternatively, the through-holes 120 may be replaced by a plurality of pits or grooves formed in the disc bonding portion 12, for example, each pit or groove is formed as a pit or groove on the inner or outer circumferential wall of the disc bonding portion 12, which does not penetrate the disc bonding portion 12 in the radial direction R.
In the present application, the above-described pits, grooves, and through-holes are also referred to as recesses.
Preferably, an inner circumferential region of the main body 11 adjacent to an outer circumference of the disc coupling portion 12 is partially recessed to form a relief groove 13 surrounding the disc coupling portion 12. The cap coupling portion 21 described below can partially protrude into the escape groove 13.
Optionally, the material of construction of the tray 10 includes cast iron, and is preferably gray cast iron.
The cap 20 is intended to be connected non-rotatably to a transmission part of the vehicle, such as a wheel hub. The cap 20 projects in the axial direction a beyond the disk 10.
The outer peripheral wall of the cap 20 forms a cap coupling portion 21, and the cap coupling portion 21 is adapted to be coupled to the tray coupling portion 12.
Next, the connection structure of the cap 20 and the disc body 10 will be described with reference to the manufacturing method of the brake disc.
First, the tray 10 described above is prepared. Preferably, the disc bonding portions 12 of the disc body 10 are sand blasted to provide the disc bonding portions 12 with high cleanliness and appropriate surface roughness to ensure a cast bonding rate of the caps 20 to the disc body 10.
Next, the cap 20 is formed by fusion casting. The cap 20 is made of, for example, an aluminum alloy, and a molten liquid of the aluminum alloy is cast into the cavity (the tray 10 is also located in the cavity at this time), and the molten liquid is solidified to form the cap 20 connected to the tray 10. Due to the fluidity of the liquid, the cap coupling portion 21 will partially pass through the through-holes 120 at the tray coupling portion 12, increasing the coupling strength of the cap 20 to the tray body 10.
In the present embodiment, the thickness of the cap joint portion 21 is larger than the thickness of the disk joint portion 12 in the radial direction R, and the cap joint portion 21 wraps the disk joint portion 12 on the inner circumferential side, the outer circumferential side, and the axially outer side (the left side in fig. 2) of the disk joint portion 12.
(second embodiment)
Next, referring to fig. 4 to 6, a brake disc according to a second embodiment of the present invention will be described.
The second embodiment is a modification of the first embodiment, and the same or similar parts as those of the first embodiment are given the same reference numerals, and detailed description thereof is omitted.
In the first embodiment, the disk body 10 and the cap 20 are combined in the axial direction a; in the present embodiment, the tray body 10 and the cap 20 are combined in the radial direction R.
The disc bonding portion 12 has an annular disc shape and extends in the radial direction R toward the inner peripheral side of the disc body 10. The through hole 120 penetrates the disc coupling portion 12 in the axial direction a.
The cap coupling portion 21 forms a flange-like edge in the outer peripheral region of the cap 20.
In the present embodiment, the thickness of the cap bonding portion 21 is larger than the thickness of the disk bonding portion 12 in the axial direction a, and the cap bonding portion 21 wraps the disk bonding portion 12 on both sides in the axial direction and on the radially inner side of the disk bonding portion 12.
In the axial direction a, the disc engaging portion 12 is recessed in the surface of the main body 11, and the recessed portion forms a relief groove 13. Preferably, one axial end face (left end face in fig. 5) of the cap coupling portion 21 is in the same plane as a corresponding axial end face (left end face in fig. 5) of the main body 11.
The utility model discloses at least, one of following advantage has:
(i) according to the utility model discloses a connection of disk body 10 and cap 20 of brake disc is accomplished in the founding technology, need not be with the help of other connecting pieces, and mosaic connected mode bonding strength is big.
(ii) The tray body 10 and the cap 20 are bonded by both the structural inlay (the cap bonding portion 21 is extended into the through-hole 120) and the chemical infiltration (infiltration in the fusion casting process), and the contact area of the connection portion is large and the heat conduction performance is good.
(iii) The disc bonding portion 12 subjected to, for example, sand blasting has high surface cleanliness and is not likely to have an oxide layer remaining, so that the cast bonding rate of the disc body 10 and the cap 20 is high.
(iv) The thermal expansion coefficients of the materials of the cast iron disc 10 and the aluminum alloy cap 20 are close, so that the brake disc is not easy to be cracked due to temperature change in the use process.
Of course, the present invention is not limited to the above embodiments, and those skilled in the art can make various modifications to the above embodiments of the present invention without departing from the scope of the present invention. For example:
(i) in addition to the sand blast treatment, other surface treatments may be applied to the disc bonding portion 12 to clean the surface thereof and increase the surface area of the bonding surface (for example, providing grooves on the surface of the disc bonding portion 12).
(ii) The tray 10 and cap 20 may be made of other materials having similar coefficients of thermal expansion.
Claims (8)
1. A fusion casting type brake disc comprises a disc body and a cap, wherein the disc body is in a disc shape with a central hole, and is characterized in that,
the inner periphery of the tray body forms a tray bonding portion, the surface of the tray bonding portion has a concave portion,
the outer periphery of the cap forms a cap coupling portion, the cap is formed on the inner peripheral side of the tray body by fusion casting, and the cap coupling portion partially protrudes into the recess.
2. Fusion-cast brake disc according to claim 1, wherein the recess is a through hole through the disc joint.
3. The fusion-cast brake disc of claim 1, wherein the disc bond is at least partially embedded within the cap bond.
4. The fusion-cast brake disc according to claim 1, wherein the disc bonding portion is tubular and extends in an axial direction of the brake disc, and the cap bonding portion wraps the disc bonding portion on inner and outer circumferential sides of the disc bonding portion.
5. The fusion-cast brake disc according to claim 1, wherein the disc bonding portion is disc-shaped and extends toward an inner peripheral side of the brake disc in a radial direction of the brake disc, and the cap bonding portion wraps the disc bonding portion on both sides in an axial direction of the disc bonding portion.
6. Fusion cast brake disc according to any of claims 1 to 5, wherein the disc body is made of cast iron.
7. Fusion cast brake disc according to any of claims 1 to 5, wherein the cap is made of an aluminium alloy.
8. Fusion cast brake disc according to any of claims 1 to 5, characterized in that the inner part of the peripherally located body of the disc forms several heat dissipation grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022971901.9U CN215293365U (en) | 2020-12-11 | 2020-12-11 | Fusion casting type brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022971901.9U CN215293365U (en) | 2020-12-11 | 2020-12-11 | Fusion casting type brake disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215293365U true CN215293365U (en) | 2021-12-24 |
Family
ID=79513278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022971901.9U Active CN215293365U (en) | 2020-12-11 | 2020-12-11 | Fusion casting type brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215293365U (en) |
-
2020
- 2020-12-11 CN CN202022971901.9U patent/CN215293365U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Hengruide Brake System Co.,Ltd. Assignor: SHANDONG LUSIDE MACHINERY CO.,LTD. Contract record no.: X2022980015351 Denomination of utility model: Cast brake disc Granted publication date: 20211224 License type: Common License Record date: 20220919 |
|
| EE01 | Entry into force of recordation of patent licensing contract |