CN215293364U - Cast aluminum brake drum - Google Patents
Cast aluminum brake drum Download PDFInfo
- Publication number
- CN215293364U CN215293364U CN202121182206.2U CN202121182206U CN215293364U CN 215293364 U CN215293364 U CN 215293364U CN 202121182206 U CN202121182206 U CN 202121182206U CN 215293364 U CN215293364 U CN 215293364U
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- hub
- brake drum
- friction ring
- cast aluminum
- latch
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Abstract
The utility model provides a cast aluminum brake drum, which relates to the technical field of automobile brake systems and comprises a friction ring and a disc hub; the disc hub is a disc with a U-shaped cross section, and the friction ring is embedded into the disc hub in a casting mode; the disc hub is provided with a positioning hole and a plurality of locking holes, the positioning hole is arranged in the center of the disc hub, and the locking holes are arranged around the positioning hole; the outer side wall of the friction ring is provided with a latch, the latch is arranged along the tangential direction of the friction ring, the latch is provided with a cutting groove, and the cutting groove is arranged along the axial direction of the friction ring. The problem that the comprehensive performance of a brake drum is poor in the prior art is solved.
Description
Technical Field
The utility model relates to an automobile brake system technical field especially relates to a cast aluminium brake drum.
Background
The brake drum is a metal disc, is fixed on the wheel hub and rotates along with the wheel hub. When the vehicle steps on the brake in the running process, the brake shoe clamps the brake drum to play a role in decelerating or stopping. However, the existing brake drum has poor comprehensive performance.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a cast aluminium brake drum, it has solved the relatively poor problem of comprehensive properties of the brake drum that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cast aluminum brake drum includes a friction ring and a hub;
the disc hub is a disc with a U-shaped cross section, and the friction ring is embedded into the disc hub in a casting mode;
the disc hub is provided with a positioning hole and a plurality of locking holes, the positioning hole is arranged in the center of the disc hub, and the locking holes are arranged around the positioning hole;
the outer side wall of the friction ring is provided with a latch, the latch is arranged along the tangential direction of the friction ring, the latch is provided with a cutting groove, and the cutting groove is arranged along the axial direction of the friction ring.
Compared with the prior art, the utility model discloses following beneficial effect has:
the clamping teeth are used for increasing the adhesive force between the friction ring and the disc hub in the circumferential direction, the cutting grooves are used for increasing the adhesive force between the friction ring and the disc hub in the axial direction, and the cast aluminum brake drum is prevented from loosening in the braking process, so that the comprehensive performance of the cast aluminum brake drum is improved, and the effect of improving the comprehensive performance of the cast aluminum brake drum is achieved.
Preferably, the thickness of the latch is 5-12 mm.
Preferably, the width of the cutting groove is 3-8 mm, and the depth of the cutting groove is 2-5 mm.
Preferably, the number of the latch and the cutting groove is multiple, the latch is uniformly distributed on the hub, and 2-10 cutting grooves are uniformly distributed on each latch.
Preferably, the distance between two adjacent cutting grooves on each latch is 5-20 mm.
Preferably, the friction ring is formed by gravity casting.
Preferably, the friction ring is made of cast iron, and the hub is made of cast aluminum.
Preferably, the cast aluminum brake drum further comprises a reinforcing rib, and the reinforcing rib is integrally formed with the disk hub and is positioned on one side of the disk hub close to the vehicle hub.
Preferably, the number of the reinforcing ribs is at least two, and at least two reinforcing ribs are uniformly distributed on the disk hub.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a cross-sectional view of a cast aluminum brake drum according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a friction ring according to an embodiment of the present invention.
Fig. 3 is a schematic overall structure diagram of the cast aluminum brake drum according to the embodiment of the present invention.
Fig. 4 is a bottom view of the cast aluminum brake drum according to the embodiment of the present invention.
In the above drawings: 10. a friction ring; 11. clamping teeth; 12. grooving; 20. a hub; 21. positioning holes; 22. a locking hole; 30. and (5) reinforcing ribs.
Detailed Description
In order to make the technical means, creation features, achievement purposes and actions of the present invention clearer and easier to understand, the following technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 4, the present invention provides a cast aluminum brake drum, which includes a friction ring 10 and a hub 20; the hub 20 is a circular disc with a U-shaped cross section, and the friction ring 10 is embedded in the hub 20 in a casting mode; the disc hub 20 is provided with a positioning hole 21 and a plurality of locking holes 22, the positioning hole 21 is arranged in the center of the disc hub 20, and the locking holes 22 are arranged around the positioning hole 21; be equipped with latch 11 on the lateral wall of friction ring 10, just latch 11 is followed the tangential direction of friction ring 10 sets up, be equipped with grooving 12 on the latch 11, just grooving 12 is followed the axial direction of friction ring 10 sets up.
In this embodiment, the positioning hole 21 is formed in the center of the axial line of the hub 20, the plurality of locking holes 22 are circumferentially distributed on the periphery of the positioning hole 21, when the hub 20 needs to be fixed on a hub, one end of each bolt fixed on the hub respectively penetrates through each corresponding locking hole 22, and the bolt is in threaded connection with a nut, so that the hub 20 and the hub are firmly fixed, and the hub 20 can be accurately positioned by the positioning hole 21, since the friction ring 10 is embedded into the hub 20 by casting, the arrangement of the latch 11 can increase the contact area in the circumferential direction between the outer side wall of the friction ring 10 and the inner side wall of the hub 20, and further increase the adhesion force in the circumferential direction between the friction ring 10 and the hub 20, the friction ring is prevented from loosening in the braking process, the arrangement of the cutting groove 12 can increase the contact area in the axial direction between the outer side wall of the friction ring 10 and the inner side wall of the disc hub 20, further increase the adhesive force in the axial direction between the friction ring 10 and the disc hub 20, and prevent the friction ring from loosening in the braking process, and through the mutual matching between the latch 11 and the cutting groove 12, the connection between the friction ring 10 and the disc hub 20 is firmer, the loosening is not easy to occur in the braking process, and further the comprehensive performance of the cast aluminum brake drum is improved.
Further, the thickness of latch 11 is 5 ~ 12 mm. The width of the cutting groove 12 is 3-8 mm, and the depth of the cutting groove 12 is 2-5 mm. The number of the latch 11 and the cutting groove 12 is multiple, the latch 11 is uniformly distributed on the hub 20, and 2-10 cutting grooves 12 are uniformly distributed on each latch 11. The distance between two adjacent cutting grooves 12 on each latch 11 is 5-20 mm.
In this embodiment, when the thickness of each latch 11 is 5mm, 10 cutting grooves 12 are uniformly distributed on each latch 11, the groove width of each cutting groove 12 is 3mm, the groove depth of each cutting groove 12 is 2mm, and the distance between two adjacent cutting grooves 12 on each latch 11 is 5mm, the adhesion force between the friction ring 10 and the disc hub 20 in the circumferential direction and the axial direction can be effectively improved, the connection strength between the friction ring 10 and the disc hub 20 is increased, the comprehensive performance of the cast aluminum brake drum is further improved, the release is not easily caused in the braking process, and safety accidents are avoided.
When the thickness of each latch 11 is 12mm, 2 cutting grooves 12 are uniformly distributed on each latch 11, the groove width of each cutting groove 12 is 8mm, the groove depth of each cutting groove 12 is 5mm, and the distance between two adjacent cutting grooves 12 on each latch 11 is 20mm, the adhesion force between the friction ring 10 and the disc hub 20 in the circumferential direction and the axial direction can be effectively improved, the connection strength between the friction ring 10 and the disc hub 20 is increased, the comprehensive performance of the cast aluminum brake drum is further improved, the release is not easy to occur in the braking process, and safety accidents are avoided.
When every the thickness of latch 11 is 8.5mm, every evenly distributed has six on the latch 11 grooving 12, every grooving 12's groove width is 5.5mm, every grooving 12's groove depth is 3.5mm, every adjacent two on the latch 11 when the interval between grooving 12 is 10mm, friction ring 10 with circumferential direction between the dish hub 20 with the adhesion force in the axial direction can be effectively improved, has increased friction ring 10 with joint strength between the dish hub 20, and then has improved cast aluminium brake drum's comprehensive properties, difficult the pine takes off to appear in braking process, avoids causing the incident.
Further, the friction ring 10 is formed by gravity casting.
In the present embodiment, the friction ring 10 is cast by gravity casting instead of casting the friction ring 10 by an original centrifugal method, so that the yield of the friction ring 10 can be increased, and the productivity of the friction ring 10 can be further increased.
Further, the friction ring 10 is made of cast iron, and the hub 20 is made of cast aluminum.
In the present embodiment, since cast materials used in the conventional casting of the friction ring 10 and the hub 20 are cast iron, which results in a large weight of the cast aluminum brake drum, the friction ring 10 and the hub 20 are cast using cast iron materials, and since aluminum materials are lighter than iron materials, the friction ring 10 and the hub 20 are cast using cast aluminum materials, which enables the weight of the cast aluminum brake drum to be reduced to the maximum while the structural strength of the cast aluminum brake drum itself is ensured. Meanwhile, compared with an iron material, the aluminum material has stronger corrosion resistance and higher thermal conductivity, so that the corrosion resistance of the cast aluminum brake drum can be improved, and the cast aluminum brake drum is not easy to corrode and is more attractive. Also improved simultaneously the heat dispersion of cast aluminium brake drum prevents that cast aluminium brake drum is great at braking in-process temperature rise, causes the heat decay, and then reduces the brake performance of vehicle, in addition right cast aluminium brake drum casting need carry out the finish machining to it after accomplishing, because aluminium material is less with the hardness of iron material relatively, consequently in the course of working, the wearing and tearing of cutter are less relatively, have reduced the use cost of cutter, consequently through friction ring 10 adopts cast iron casting to form, hub 20 adopts cast aluminium casting to form, can further improve cast aluminium brake drum's comprehensive properties.
Further, the cast aluminum brake drum further comprises a reinforcing rib 30, and the reinforcing rib 30 is integrally formed with the disk hub 20 and is located on one side of the disk hub 20 close to the vehicle hub. The number of the reinforcing ribs 30 is at least two, and at least two reinforcing ribs 30 are uniformly distributed on the hub 20.
In this embodiment, the reinforcing ribs 30 are integrally formed with the hub 20, and the arrangement of the reinforcing ribs 30 can increase the structural strength of the hub 20, thereby improving the structural strength of the cast aluminum brake drum and prolonging the service life of the cast aluminum brake drum, thereby improving the comprehensive performance of the cast aluminum brake drum. At least two strengthening rib 30 evenly distributed is in on the dish hub 20, can further increase the structural strength of dish hub 20, and then further improve the structural strength of cast aluminium brake drum increases the life of cast aluminium brake drum can better give off the heat of brake drum simultaneously, with this improvement the comprehensive properties of cast aluminium brake drum.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (9)
1. A cast aluminum brake drum, characterized by: comprising a friction ring (10) and a hub (20);
the hub (20) is a circular disc with a U-shaped cross section, and the friction ring (10) is embedded in the hub (20) in a casting mode;
the disc hub (20) is provided with a positioning hole (21) and a plurality of locking holes (22), the positioning hole (21) is arranged in the center of the disc hub (20), and the locking holes (22) are arranged around the positioning hole (21);
be equipped with latch (11) on the lateral wall of friction ring (10), just latch (11) are followed the tangential direction of friction ring (10) sets up, be equipped with grooving (12) on latch (11), just grooving (12) are followed the axial direction of friction ring (10) sets up.
2. The cast aluminum brake drum of claim 1, wherein: the thickness of latch (11) is 5 ~ 12 mm.
3. The cast aluminum brake drum of claim 2, wherein: the width of the cutting groove (12) is 3-8 mm, and the depth of the cutting groove (12) is 2-5 mm.
4. The cast aluminum brake drum of claim 3, wherein: the number of the clamping teeth (11) and the number of the cutting grooves (12) are multiple, the clamping teeth (11) are uniformly distributed on the friction ring (10), and 2-10 cutting grooves (12) are uniformly distributed on each clamping tooth (11).
5. The cast aluminum brake drum of claim 4, wherein: the distance between two adjacent cutting grooves (12) on each clamping tooth (11) is 5-20 mm.
6. The cast aluminum brake drum of any one of claims 1 to 5, wherein: the friction ring (10) is formed by gravity casting.
7. The cast aluminum brake drum of any one of claims 1 to 5, wherein: the friction ring (10) is made of cast iron, and the hub (20) is made of cast aluminum.
8. The cast aluminum brake drum of claim 1, wherein: the cast aluminum brake drum further comprises a reinforcing rib (30), wherein the reinforcing rib (30) and the disc hub (20) are integrally formed and are positioned on one side, close to the hub, of the disc hub (20).
9. The cast aluminum brake drum of claim 8, wherein: the number of the reinforcing ribs (30) is at least two, and the reinforcing ribs (30) are uniformly distributed on the disk hub (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121182206.2U CN215293364U (en) | 2021-05-28 | 2021-05-28 | Cast aluminum brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121182206.2U CN215293364U (en) | 2021-05-28 | 2021-05-28 | Cast aluminum brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215293364U true CN215293364U (en) | 2021-12-24 |
Family
ID=79542778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121182206.2U Active CN215293364U (en) | 2021-05-28 | 2021-05-28 | Cast aluminum brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215293364U (en) |
-
2021
- 2021-05-28 CN CN202121182206.2U patent/CN215293364U/en active Active
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